ḥāmam חָמַם ‘to warm’ (Hebrew)

Etymology^?: a primitive root

ḥāmam v
1) to be hot, become warm
 1a) (Qal)
  1a1) to be or grow warm
  1a2) of passion (fig.)
 1b) (Niphal) to become aroused, inflame oneself with
 1c) (Piel) to warm
 1d) (Hithpael) to warm oneself