Verb
brumate (third-person singular simple present brumates, present participle brumating, simple past and past participle brumated)
(zoology) To be in a lethargic state, somewhat analogous to hibernation but not the same. Commonly found in reptiles and in some other animal species, such as bears.
My snake is starting to brumate.
If they seem healthy, but refuse food during the winter (many individuals of some of the mountain species do this), brumate them. Source: Internet
It is not dangerous to brumate a neonate if it has sufficient body weight it attained from its egg yolk. Source: Internet