kheh-khì客氣

to be polite

to be polite; to behave in a courteous manner; polite; courteous; civil; you're welcome

interjection

English Wiktionary, “客氣” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%AE%A2%E6%B0%A3 · confidence: Medium (Wiktionary, Hokkien)