Definition of 効か
- (pref) surplus- (attaches to start of Sino-Japanese words); excess-; over-
- per- (chemical with more of a certain element than found in other compounds of the same constituents)
- (suf) -ist (used after a noun indicating someone's occupation, pursuits, disposition, etc.); -er
- (ctr) counter for the ichi-ni-san counting system (usu. directly preceding the item being counted); a noun read using its on-yomi