Where does “水底” come from?

水底 (Japanese) comes from Old Japanese 水, from Proto-Japonic *mentu — water.

水底 (Japanese): the bottom or bed of a body of water

Definitions

  1. the bottom or bed of a body of water

Ancestry of “水底”, step by step

水底 traces back through 3 separate lines of ancestry.

via Old Japanese 水

StepLanguageWordMeaning
1Old Japanese水water
2Proto-Japonic*mentuwater

via Old Japanese 底

StepLanguageWordMeaning
1Old Japanese底—

via Middle Chinese 水底

StepLanguageWordMeaning
1Middle Chinese水底—
Every word from Proto-Japonic *mentu →Every word from Old Japanese 水 →