Moustache

google

ref

late 16th century: from French, from Italian mostaccio, from Greek mustax, mustak- .

wiktionary

ref

Used in English since the 16th century. Via French moustache from Italian mostaccio, from Byzantine Greek μουστάκιον(moustákion), diminutive of (Doric) Ancient Greek μύσταξ(mústax, “upper lip”), from Proto-Indo-European *mendʰ-(“to chew”). Replaced native English kemp(“moustache”), from Old English cenep(“moustache”).

etymonline

ref

moustache (n.)

see mustache. Related: moustachial.