乐安 (lè ān) — Le'an (County, abbreviated from 乐安县, in Jiangxi Province)

Two or more meaningful parts placed together so that their meanings combine into a new one.

This origin belongs to the traditional form 樂; 乐 is its simplified writing.

In the traditional form 樂, 絲 (string) with 木 (wood) shows strings on a piece of wood, a musical instrument; the simplified 乐 is a later shorthand.

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

In 安, 宀 sits above a seated 女 on a cushion; 宀 is the meaning part, 女 is the sound part, and the character originally meant sitting at ease.