What is "foining"

Usage examples of "foining".

So when they had rested them a while they yede to battle again, tracing, racing, foining as two boars.

And then they avoided their horses as noble knights, and dressed their shields, and drew their swords with ire and rancour, and they lashed together many sad strokes, and one while striking, another while foining, tracing and traversing as noble knights.

So then they fought long on foot, tracing and traversing, smiting and foining long without any rest.