Moustache definitions

mŭs'tăsh', mə-stăsh'
noun
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A growth of facial hair between the nose and the upper lip.

noun
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Origin of moustache

Used in English since the 16th century. Via French from Italian mostaccio, from Byzantine Greek μουστάκιον (moustakion), diminutive of (Doric) Ancient Greek μύσταξ (mustaks, “upper lip"), from Proto-Indo-European *mendÊ°- (“to chew").