A dithematic name is a single-word given name consisting of two lexemes or stems, to be distinguished from compound names, which consist of several separate words. They are commonly dated from pre-Christian times among Indo-Europeans, [1] [2] [3] in particular, Lithuanians, [4] [5] [6] Germanic, and Slavic peoples. [7] [8] [9]
Single-lexeme names or monothematic names are names based on a single lexeme/stem.
Polish linguist Zofia Kaleta asserts that many Old Germanic and Old Slavic dithematic given names reflected wishes for newborns. [7]
Since dithematic names are often long, they became truncted, first as diminutives, which had later become regular given names of their own. [10] Czech examples: Rostislav – Rost; Svatopluk – Pluk; Radomír – Radim; Sbyslav – Sbych; Sdeslav – Sdeš, Sdenĕk (Zdeněk); Dobromil – Došek; Přemysl – Přek; Budihost – Buň. [11]