恨之入骨

恨之入骨	hèn zhī rù gǔ	to hate sb to the bone (idiom)
恨	hèn	to hate / to regret
之	zhī	(possessive particle, literary equivalent of 的) / him / her / it
入	rù	to enter; to go into / to join; to become a member of / (bound form) to conform to (as in 入时) / abbr. for 入声 / (on product packaging, after {number n} + {classifier}) containing (n pieces) (from Japanese 入 "iri")
骨	gū	used in 骨碌碌 / used in 骨碌 / used in 骨朵
骨	gǔ	bone