hiber-

(Latin: winter, wintered, wintry; it also refers to: sleep, sleeping; inactive, inactivity; dormant, dormancy [suspended animation or a lack of activity])

Cross references of word families that are related directly or indirectly to "winter, freezing, frost, and/or cold": algid- (cold, chilly); cheimo-, chimo- (winter, cold); crymo-, krymo- (cold, chill, frost); cryo-, kryo-; (cold, freezing); pago- (cold, freezing); psychro- (cold); rhigo- (cold, frost; shiver).