湯飲み
ゆのみ · yunomi · JLPT N2 · noun
teacup
🍵 湯 (hot water) + 飲み (drinking, from 飲む) = a cup for drinking hot tea
The 湯 part means hot water, and 飲み comes from 飲む, to drink. A yunomi is the handleless cup used for green tea, so the name literally means a hot-water drinking vessel.