IPA: //ˈdraɪsuːt//
KK: /ˈdraɪˌsut/
A special suit designed to keep a person warm and dry while they are in cold water, often used in activities like diving or kayaking.
He wore a drysuit to stay warm during his scuba diving trip in icy waters.
Drysuit is formed from "dry" (from Old English *dryge*, meaning free from moisture) and "suit" (from Old French *suite*, meaning a set of clothes or garments). The word "drysuit" refers to a suit designed to keep the wearer dry, especially in water activities.
Think of a suit that keeps you 'free from moisture' ('dry') — that's why a drysuit is designed to keep you dry.