Originally Posted by Orochimaru
Ok. So are all Kunyomi readings Yamato Kotoba? Because it seems to me that kanji is generally used even for words that aren't derived from Chinese...
are yamato kotoba
There was Yamato Kotoba X in Japan in the first place.
Kanji Y was imported into Japan,
and Kanji Y represented a similar concept to Yamato Kotoba X.
Ancient Japanese people gave Yamato Kotoba X to Kanji Y,
and they started to use Yamato Kotoba X as a kun-yomi
of Kanji Y.