late 14c., from Old French vas, vase "receptacle, container," from Latin vas (plural vasa) "container, vessel." American English preserves the original English pronunciation (Swift rhymes it with face, Byron with place and grace), while British English shifted mid-19c. to preference for a pronunciation that rhymes with bras.
vary
vas
vascular
vasculature
vasculitis
vase
vasectomy
Vaseline
vasoconstriction
vasodilation
vasopressin