pertumescere Save DMLBS pertumescere [LL], pertumere , to swell up, become completely swollen or inflated. tumeo ‥ et extumesco, ~esco ‥ conponitur etiam tumeo ~eo ‥ distumeo Osb. Glouc. Deriv. 576; to bolne, ‥ tumere, ob-, con-, per- CathA.