IPA: /ˈʌndərˌkoʊt/
KK: /ˈʌndərˌkoʊt/
A layer of material applied under another layer, often used in painting or as a protective layer on surfaces.
Before painting the wall, we applied an undercoat to ensure better adhesion of the top coat.
To apply a base layer of paint or other material before the final coat.
Before painting the walls, make sure to undercoat them for better coverage.
Past: undercoated
Past Participle: undercoated
Undercoat → It is formed from "under" (from Old English "under", meaning beneath or below) and "coat" (from Old French "cote", meaning a covering or garment). The word "undercoat" refers to a layer of fur or paint that is beneath the outer layer or covering.
Think of something that is a 'covering' ('coat') that is 'beneath' ('under') another layer — that's what an undercoat is.