IPA: /ˈʌndərˌɡleɪz/
KK: /ˈʌndərˌɡleɪz/
Referring to a type of decoration or finish that is applied to pottery before the final glaze is added.
The artist used an underglaze to create intricate designs on the ceramic piece.
A type of coloring or decoration that is applied to pottery before it is covered with a shiny glaze.
The artist used an underglaze to add intricate designs to the ceramic bowl.
Underglaze is formed from "under-" (meaning beneath or below) and "glaze" (from Old French *glas*, meaning a shiny coating). The word refers to a decorative layer applied beneath a glaze on pottery or ceramics.
Think of something that is 'beneath' ('under-') a shiny coating ('glaze') — that's what underglaze means.