torpescent

from The Collaborative International Dictionary of English v.0.48

Torpescent \Tor*pes"cent\, a. [L. torpescens, p. pr. of
   torpescere to grow stiff, numb, or torpid, incho. fr.
   torpere. See {Torpid}.]
   Becoming torpid or numb. --Shenstone.
   [1913 Webster]