儀

Phono-semantic compound:

人 (사람 인, “person”) — semantic, indicating human action or conduct.

義 (옳을 의, “righteousness, justice”) — phonetic, lending the sound 의 / yí.

Thus the character conveys “human conduct in accordance with righteousness”, later extended to etiquette, ceremonial law, and appearance.

The semantic emphasis shifted over time from “personal conduct” to “ritual and etiquette”, “formal appearance and instruments.”

Used in words relating to ceremony, dignity, or instruments.

儀式 (의식) — ceremony, rite

儀態 (의태) — bearing, comportment

儀器 (의기) — instrument, apparatus

威儀 (위의) — dignity, stately bearing

儀容 (의용) — appearance, countenance