TSUMUGU · TOCFL B1 (est.) · 字
啞
ㄧㄚˇ · yǎ
adj — mute, dumb; hoarse; (啞然) struck silent
字源 FORM — what the parts do
Tyà → yǎ — same ya, the tone falls
A mouth (口) that won't sound — mute. 亞 yà carries the sound, the tone dropping to yǎ. From no voice comes the mute and the hoarse: 啞巴、沙啞、啞口無言.
故事 STORY — a scene to remember it by
嘴（口）張了又張，半個字也吐不出來。
The mouth (口) opens and opens, and not half a word comes out.
字源記憶法
意 · Meanings
(本義)啞、不能言— mute, unable to speak常用
→啞巴、聾啞— a mute person
⇒沙啞、嘶啞— hoarse, rasping
(本義) original meaning · → ⇒ each arrow = one more step of extension