Root Meaning in English Origin language Etymology (root origin) English examples galact- [ 1] (ΓΛΑΚ) [ 2] milk Greek γάλα, γάλακτος (gála, gálaktos galactagogue , galactic, galactorrhea , lactose , polygala , polygalactia, galaxy gam- [ 3] marriage, wedding Greek γάμος (gámos γαμεῖν (gameîn ), γαμέτης gamétēs γαμετή gametḗ agamic , agamogenesis , agamospermy , agamy, allogamy , anisogamete, anisogamy , apogamy , autogamy , cleistogamous, cleistogamy , cryptogam , deuterogamist , deuterogamy, digamous, digamy , endogamous, endogamy , exogamous, exogamy , gamete , gametic, gametocyte , gametogenesis , gametophyte , geitonogamy , heterogametic , heterogamous, heterogamy , homogametic , karyogamy , misogamy , monogamous, monogamy , oogamy , planogamete, plasmogamy , polygamist, polygamy gamb- leg Latin gamba gam, gambit , gambol, gammon gamm- [ 4] G, g Greek Γ, γ γάμμα (gámma gamma gar- (GAR) [ 5] chatter Latin garrire gargantuan, gargle , gargoyle , garrulous , jargon gargal- tickle Greek γαργαλίζειν (gargalízein γαργαλιζόμενον gargalizómenon γαργαλισμός gargalismós gargalesis , gargalesthesia , hypergargalesthesia gargar- gargle Greek γαργαρίζειν (gargarízein γαργαρισμός gargarismós γαργαρεών gargarize gastr- [ 6] stomach Greek γαστήρ, γαστρός (gastḗr, gastrós epigastric, epigastrium , gasteroid , gastric , gastrin , gastritis , gastroenterologist, gastroenterology , gastrolith , gastronomic, gastronomy , gastroparesis , gastropod , gastroptosis , gastroschisis , gastrotrich , mesogastric, Myxogastria ge- , geo- [ 7] earth Greek γῆ (gê γαῖα, γαίας (gaîa, gaías γεω- geō- apogee , biogeography , epigeous , Gaia , geocentric, geocentrism , geode , geodesy , geodetic, geography , geoid , geology , geomancy , geometry , geomorphology , geophysicist, geophysics , georgic, Georgics , geosphere , geostatic , geostrophic , geosynchronous , geosyncline , hypogeous, hypogeum , Pangea , perigee geiton- [ 8] neighbor Greek γείτων, γείτονος (geítōn, geítonos γειτόνημα geitonogamy gel- icy cold Latin gelum congeal, congelation , gel , gelati, gelatin , gelatinous, gelation , gelato , gelée , gelid, gelifluction , gelignite , jellification, jelly gen- , gon- [ 9] (ΓΕΝ) [ 10] birth, beget, race, kind Greek γίγνεσθαι (gígnesthai γένος (génos γενετικός genetikós γένεσις (génesis γενεά (geneá allergen, anagenesis , antigen, autogenesis, autogenous, biogenesis , dysgenic , endogen, endogenous, epigene, epigenesis , epigenetics , epigone, erogenous , Eugene, eugenic, eugenics , exogenous , gametogenesis , gene , genealogy , genesis, genetic, genocide , genotype , genophobia , gonad , heterogeneous , homogenesis, homogenetic, homogeneous, hydrogen, hypogene , hypogenesis, hypogenic, hypogenous, monogenic, oogenesis , paragenesis , pathogen , polygenous, progenesis , pseudogene , spermatogenesis gen- (GEN) [ 11] beget Latin gignere , genitus genus (genitive generis ), see also generare congenial, engender , gender, generate, generation, genial, genius, genital, genitive, genteel , gentle, genuine, genus , indigenous, ingenious, ingenuous, primogenitor , progeny gephyr- [ 12] bridge Greek γέφυρα géphura γεφυρόω gephyrophobia ger- [ 13] old Greek γέρων, γέροντος (gérōn, gérontos γηράσκω erigeron , gerascophobia , geriatric, geriatrics , gerontocracy , gerontology , gerontophile, gerontophilia , gerontophobia , gerontoplast , gerousia , progeria , progeroid ger- , gest- (GES) [ 14] bear, carry Latin gerere , gestus agger , congest, digest, gerundive , gestation , register, suggest, vicegerent geran- [ 15] crane Greek γέρανος (géranos γεράνιον geránion γερανώδης Geranium germ- sprout Latin germen, germinis germ, German, germane, germicide , germinal, germinate, germination , nongermane, regerminate geu- [ 16] (ΓΕΥΣ) [ 17] taste Greek γεύειν (geúein γεύεσθαι (geúesthai γεῦσις, γευόμενον ageusia , dysgeusia , hypergeusia , hypogeusia , parageusia glabr- hairless Latin glaber glabella , glabellar , glabrate, glabrescent , glabrous glaci- ice Latin glacies glacé, glacial, glaciation , glacier , glacious, glacis , glance gladi- sword Latin gladius gladiator , gladiolus glauc- [ 18] gray Greek γλαυκός (glaukós γλαυκότης γλαύξ, γλαῦκος glaucophane , Glaucopsyche , glaucophobia glia- [ 19] glue Greek γλία (glía glial , glioblastoma , glioma , gliosis , microglia , neuroglia glob- sphere Latin globus global, globate, globe, globose , globosity, globular, globule, globulin , inglobate glori- glory Latin gloria gloriation, glorification , glorify, gloriole , glorious, glory, inglorious, vainglorious, vainglory gloss- , glot- [ 20] tongue Greek γλῶσσα (glôssa γλωττίς glōttís aglossia , anthropoglot, aryepiglottic , diglossia , epiglottis , gloss, glossary, glossophobia , glottis , heterogloss , heteroglossia , idioglossia , isogloss , monoglot , monoglottism , polyglot, polyglottism glut- [ 21] rump Greek γλουτός (gloutós gluteus glutin- glue Latin gluten , glutinis agglutinant, agglutinate, agglutination , agglutinative , glue, glutelin , gluten , glutinosity, glutinous, nonagglutinative glyc- [ 22] sweet Greek γλυκύς (glukús glycogen , glycogenesis , glycogenolysis , glycolipid , glycophyte , glycoprotein , glycoside , glycosidic , hypoglycaemia glyph- [ 23] carve Greek γλύφειν (glúphein γλυφή gluphḗ γλυπτός gluptós γλυπτικός gluptikós aglyphous, anaglyph , ditriglyph, ditriglyphic, glyph , glyptic , Glyptodon , glyptograph, hieroglyph , hieroglyphic, monotriglyph , opisthoglyphous , petroglyph , proteroglyphous , solenoglyphous gnath- [ 24] jaw Greek γνάθος (gnáthos γναθμός Agnatha , agnathous, chilognath , compsognathus , endognathion , epignathous , exognathion , gnathic , gnathophyma , hypognathous , hystricognath , mesognathion , mesognathous, prognathism gno- [ 25] (ΓΝΩ) [ 26] know Greek γιγνώσκειν (gignṓskein γνῶναι, γνωτός gnônai, gnōtós γνωστός gnōstós γνωστικός gnōstikós γνῶσις gnôsis γνῶσμα, γνώμη gnôsma, gnṓmē γνώμων gnṓmōn agnosia , agnostic, agnosticism , anagnorisis , diagnosis , dysanagnosia, gnomic, gnomon , gnomonic, gnosia, gnosis , Gnostic , gnosticism , pathognomonic , physiognomy , prognosis , telegnosis gnosc- , -gnit- know Latin gnoscere acquaint, acquaintance, agnition, agnize, cognition , cognitional, cognitive, cognitivity, cognizable, cognizance, cognizant, cognize, cognoscence, cognoscenti, cognoscible, cognovit , connoisseur, ennoble, ennoblement , ignoble, ignorant, ignoscible, incognito, nobiliary , nobilitate, nobilitation , nobility , noble, note, notice, noticeable, notion, notional, notionality, notoriety, notorious, precognition , quaint, reacquaint, recognition, recognize, reconnaissance , reconnoiter, reconnoitre gon- [ 27] corner, angle, knee Greek γωνία (gōnía γόνυ (gónu goniometer , gonion , gonioscope , gonitis , gonyaulax , gonycampsis, hexagon, pentagon, polygon , trigon, trigonometry grad- , gred- , gress- (GRAD) [ 28] walk, step, go Latin gradi , gressus gradus "step" aggradation , aggression, antegrade, anterograde, centigrade , degrade, degree, egress, gradation, grade, gradient , gradine, gradual, graduality, graduate, graduation , gree, ingress , multigrade, nongraduate, postgraduate, progradation , prograde , progress, regress, retrogradation , retrograde , saltigrade, tardigrade , transgress gramm- letter , writing Greek γράφειν (gráphein γράμμα, γράμματος (grámma, grámmatos γραμματικός grammatikós anagram , anagrammatic, diagram, diagrammatic, engram, epigram , epigrammatic, grammar , grammatic, grammaticist, hologram , lipogram , monogram , pangrammatic , pentagram , program, programmatic, telegram, telegramme , tetragram, tetragrammaton , trigram gran- grain Latin grānum degranulation , engrain, filigree , garner, garnet , grain, granary , grange, granger, granite , granivore, granivorous, granivory , granola , granular, granularity , granulate, granulation , granule, grenade, grogram , grosgrain , ingrain, multigrain , pomegranate grand- grand Latin grandis aggrandisement, grandee , grandeur, grandific, grandiloquent, grandiloquous, grandiose , grandiosity , grandioso , grandity graph- [ 29] draw, write Greek γράφειν (gráphein γραφικός graphikós γραφή (graphḗ γραφία graphía γραφεῖον grapheîon allograft , anepigraphic, autograft , autograph , digraph , epigraphic, epigraphy , graft, graph, grapheme , graphemics , graphene , graphic, graphite , graphology , graphomania , graphospasm, heterograph , hexagraph , holography , homograph , isograft , logographic , micrograph , monograph , orthography , paragraph , photograph, photographic, photomicrograph , polygraph , pseudepigraphy , syngraft , telegraph , telegraphy , tetragraph , trigraph grat thank, please Latin grātus , see also gratia aggrace, agree, agreeable, agreeance, agreement, congratulant, congratulate, congratulatory, congree, disagree, disagreeable, disagreement, disgrace, grace , graciosity, gracioso , gracious, gratification, gratify, gratis, gratitude , gratuitous, gratuity , gratulant, gratulate, gratulation, gratulatory, grazioso , gree, ingrate, ingratiate, ingratiation , ingratitude, maugre, noncongratulatory, nongratuitous grav- heavy Latin gravis aggravate, aggravation, aggravative, aggravator, aggrieve, aggrievement, degravation, gravamen , grave , gravid, gravida , gravidity, gravitas , gravitate, gravitation , gravitational, gravity , grief, grieve, grievance , grievant, grievous, ingravescence, ingravescent, multigravida , multigravidity , nongravitational, nulligravida , primigravida , reaggravate, supergravity greg- flock, herd Latin grex , gregis aggregate, aggregation, aggregator, congregant, congregate, congregation, congregational, desegregate, desegregation, disaggregate, disgregate, disgregation , egregious, gregarian, gregarine , gregarious, intercongregational, segregate, segregation gryp- [ 30] hooked Greek γρυπός (grupós γρυπότης, γρύπωσις grupótēs, grúpōsis arthrogryposis , Grypoceras , Gryposaurus gubern- , gov- govern, pilot Latin gubernare governor government, govern, gubernatorial , gust- taste Latin gustus disgust , gustatory , gusto, gustoso gutt- drop Latin gutta gout , gutta , guttate, guttifer, guttiform guttur- throat Latin guttur goitre , guttural gymn- [ 31] nude Greek γυμνός (gumnós gymnasium , gymnast, gymnastics , gymnophobia , gymnoplast, gymnosophist , gymnosperm , gymnospore gyn- , gynaec- [ 32] woman Greek γυνή, γυναικός , (gunḗ , gunaikós )acrogynous, androgyne, androgynous, androgyny , epigyne , epigynous, epigynum, gymnogynous, gynaeceum , gynaecocracy , gynarchy , gyne , gynecocracy , gynecology , gynecomastia , gynodioecious, gynoecium , gynoid , gynophobia , heterogynous, hypogynous, misogynist , monogyny , oligogyny, philogyny , polygynist, polygyny gyr- [ 33] ring Greek γῦρος (gûros γυρός gurós agyria , autogyro , gyre , gyrectomy, gyrencephalic , gyrodyne , gyroid , gyromagnetic , gyromancy , gyroscope , gyrosphere, gyrostat , gyrostatic gyrotropic , gyrus , microgyrus , micropolygyria , pachygyria , polygyria , polymicrogyria , ulegyria gyrin- tadpole Greek γυρός γυρῖνος (gurós, gurînos γυρινώδης gurinṓdēs Gyrinophilus 
