ĉaŭ

See also: cau, cấu, câu, cầu, cẩu, čau, cậu, and čau

Esperanto

Etymology

Borrowed from Italian ciao (“hello; goodbye”), from (deprecated template usage) [etyl] Venetian ciao (“hello; goodbye”, literally “your humble servant”), from (deprecated template usage) [etyl] Venetian s-ciao / s-ciavo (“servant, slave”), from (deprecated template usage) [etyl]  sclavus (“Slav, slave”), related also to Italian schiavo, English Slav, slave and old Venetian S-ciavón (“Slav”), from Latin Sclavonia (“Slavonia”).

Interjection

ĉaŭ

1. (neologism, informal) hello; goodbye

Synonyms

• (hello): saluton
• (goodbye): adiaŭ