How to pronounce “polearm” in English

Dalinar pushed upward, holding the polearm in two hands, sweeping the guard's blade into the air over his head and stepping forward until he was face-to-face

"Then he came back and barely managed to catch the other guard's sword on the haft of his polearm.

Dalinar growled, full of the Thrill, and swung his polearm by one hand, hooking the spike in the lord's side and yanking, dropping him a third time.

And this time, he was greeted by the sight of Dalinar slamming his polearm down by two hands, driving