口吃
koǔ chī · HSK 7
to stutter
👄 口 mouth + 吃 eat; the mouth trips eating its own words = stutter
口 (kǒu) is mouth and 吃 (chī) normally means to eat, but here it carries the older sense of halting speech. A mouth that keeps tripping as if chewing on the words = to stammer.
口 — pictograph of an open mouth
口 is one of the oldest pictographs in Chinese, originally drawn as a simple outline of an open mouth. Its core meaning 'mouth' extended naturally to 'opening' or 'entrance', as in 入口 (entrance). It also serves as a common radical in characters related to speech, eating, or apertures.
吃 — mouth 口 + beg 乞
A semantic-phonetic compound: 口 (mouth) gives the meaning 'to eat,' while 乞 (qǐ, 'to beg') hints at the sound. The original character for 'eat' was 喫; 吃 first meant 'to stutter' but was later adopted as the standard simplified form for 'to eat.'