tsar

Borrowed from Russian царь (carʹ), from Old East Slavic цьсарь (cĭsarĭ), from Proto-Slavic *cěsařь, from a Germanic language, from Proto-Germanic *kaisaraz, from Latin Caesar. Doublet of Caesar and Kaiser. The spelling tsar began to replace the older czar in the nineteenth century. Compare Byzantine Greek Τζαῖσαρ (Tzaîsar).

出典: Wiktionary「tsar」（CC BY-SA 4.0）