decompose
v.
1750s, "to separate into components," from de- "opposite of" + compose. Sense of "putrefy" is first recorded 1777. Related: Decomposed; decomposing.
〔李〕[de-=to undo 取消；compose 组合 v．⇒“to undo that of composing 取消组合的形式”→] vt. separate into what a substance is made of 分解