יָחַם yâcham (H3179)

probably to be hot; figuratively, to conceive

1) to be hot, conceive 1a) (Qal) 1a1) to be hot, become hot 1a2) to mate (of animals) 1a3) to be or become hot (fig. of anger) 1b) (Piel) 1b1) to conceive (sexually) 1b2) to be in heat (of animals)

a primitive root;