Where does “甲州” come from?

甲州 (Chinese) comes from Japanese 甲州, from Japanese 甲斐 — value, reward, avail, being fruitful or worth...

Ancestry of “甲州”, step by step

StepLanguageWordMeaning
1Japanese甲州(~)
2Japanese甲斐value, reward, avail, being fruitful or worth...
Every word from Japanese 甲斐Every word from Japanese 甲州