刺骨

刺骨	cì gǔ	piercing / cutting / bone-chilling / penetrating (cold)
刺	cī	(onom.) whoosh
刺	cì	thorn / sting / thrust / to prick / to pierce / to stab / to assassinate / to murder
骨	gū	used in 骨碌碌 / used in 骨碌
骨	gǔ	bone