The Greek and Latin word for moustache and the word formation and meaning in medical terms
The Greek word for moustache is "hepteris," and the Latin word is "mustacium."
In medical terms, the word formation for moustache would be "cheil-," which is derived from the Greek word "cheilos" meaning "lip," and "-trich," which is derived from the Greek word "trichos" meaning "hair." When combined, "cheil- + trich" forms the word "cheiltrich," which refers to moustache in medical terminology.
The meaning of this medical term, "cheiltrich," therefore, refers specifically to the hair growth on the upper lip, commonly known as a moustache.