Where does “警察犬” come from?

警察犬 (Japanese) comes from Japanese 犬, from Old Japanese いぬ.

警察犬 (Japanese): police dog

Definitions

  1. police dog

Ancestry of “警察犬”, step by step

警察犬 traces back through two separate lines of ancestry.

via Japanese 犬

StepLanguageWordMeaning
1Japanese犬dog; canine; one who is loyal; a spy
2Old Japaneseいぬ—

via Japanese 警察

StepLanguageWordMeaning
1Japanese警察police; Short for 警察署
Every word from Old Japanese いぬ →Every word from Japanese 犬 →