staunch

But it was nevertheless in such a trait that the staunchness of his love found its true food.

But it was not pluck alone that roused his enthusiasm for our hero; it was his grit, his staunchness.

She stood for the reserve and staunchness of the bracing North.

I never saw such fine lines; and best of all, I dont think the builder has sacrificed anything in the way of staunchness to speed.