chiaus/t͡ʃaʊs/EtymologyFirst attested c. 1600, from Ottoman Turkish چاوش (çavuş, “messenger, herald, licitor, sergeant”). Cognate with Turkish çavuş, Old Turkic 𐰲𐰉𐰾 (čabïš, “army commander”). Doublet of chouse.chiaus means an Ottoman Empire court official; an attendant, messenger, herald, interpreter. Lexicurio rates it Sui generis — a strength score of 87 out of 100.chiaus is pronounced /t͡ʃaʊs/.nounAn Ottoman Empire court official; an attendant, messenger, herald, interpreter.An Ottoman Empire çavuş (“sergeant”).