Where does “鶴嘴” come from?

鶴嘴 (Japanese) comes from Japanese 嘴, from Japanese 口, from Japanese くち, from Japanese 朽ちる.

鶴嘴 (Japanese): a pickaxe, a pick, a mattock

Definitions

鶴嘴 traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Japanese	嘴	a beak; a bill
2	Japanese	口	mouth; opening; the mouth
3	Japanese	くち	mouth
4	Japanese	朽ちる	—

Step	Language	Word	Meaning
1	Japanese	鶴	a crane
2	Middle Chinese	鶴	—