[hi.ber.nate] vi -nat.ed ; -nat.ing [L hibernatus, pp. of hibernare to pass the winter, fr. hibernus of winter; akin to L hiems winter, Gk cheimon] (ca. 1802) 1: to pass the winter in a torpid or resting state
2: to be or become inactive or dormant -- hi.ber.na.tion n -- hi.ber.na.tor n