Where does “変成岩” come from?

変成岩 (Japanese) comes from Japanese 岩, from Old Japanese いわ.

変成岩 (Japanese): metamorphic rock

Definitions

  1. metamorphic rock

Ancestry of “変成岩”, step by step

変成岩 traces back through two separate lines of ancestry.

via Japanese 岩

StepLanguageWordMeaning
1Japanese岩rock
2Old Japaneseいわ—

via Japanese 変成

StepLanguageWordMeaning
1Japanese変成metamorphosis
Every word from Old Japanese いわ →Every word from Japanese 岩 →