mustache
UK[məˈstɑːʃ]US[ˈmʌsˌtæʃ]
n
The hair that grows on a man's upper lip.
Etymology
The word 'mustache' entered English in the late 16th century from the French 'moustache', which itself came from the Italian 'mostaccio'. The Italian term traces back to the Medieval Greek 'moustaki', a diminutive of the Ancient Greek 'mystax', meaning 'upper lip' or 'mustache'. This Greek root is believed to have origins in a common Indo-European source, shared with words like the Sanskrit 'muṣṭi-' meaning 'fist', possibly drawing a metaphorical link between a clenched fist and a clump of hair. The spelling and pronunciation were Anglicized over time, settling on 'mustache' as the standard form, while the variant 'moustache' retains the French influence.
Analysis
The word is a loanword adopted as a single, unanalyzable unit in English.
Examples
He twirled the ends of his bushy mustache thoughtfully.
The old photograph showed a gentleman with a perfectly waxed mustache.
He decided to shave off his mustache for a cleaner look.