period. This is also known as Tōsō-on (唐宋音, Tang and Song sound). Kan'yō-on (慣用音, "customary sound") readings, which are mistaken or changed readings of the...

Kan-on readings are the most commonly encountered type of on'yomi. Kan'yō-on (慣用音 "customary sound") readings are not considered to follow the regular patterns...