IPA: /ˈhɔːs.mən/
KK: /ˈhɔrsˌmən/
A man who is skilled at riding horses or has expertise in handling them.
The horseman expertly guided his horse through the obstacle course.
Horseman → It is formed from "horse" (from Old English "hors", meaning a large domesticated animal used for riding) and "man" (from Old English "mann", meaning a human being). The word "horseman" refers to a person who rides a horse.
Think of a 'large domesticated animal' ('horse') that a 'human being' ('man') rides — that's what a horseman is.