–verb (used with object), verb (used without object), -fied, -fy⋅ing.
to make or become swollen or tumid.
Origin: 1590–1600; back formation from tumefied, Anglicization of L tumefactus (ptp. of tumefacere to cause to swell), equiv. to tume(re) to swell + -factus made, done; see fact, -fy