Umphress rhymes with:
jeffress, alarice, ambergris, barris, boris, boris', borris, caris, carris, childress, chloris, claris, clarisse, clarrisse, clitoris, cypris, darice, delores, denigris, derus, dolores, dorice, dorris, duris, endress, fabris, faris, farris, fentress, ferraris, ferris, fitzharris, fitzmaurice, fitzmorris, floris, garis, garris, gehris, glaris, harris, harris', harriss, huntress, jeffress, juris, landress, lathouris, laurice, leatrice, loris, lyris, makris, marice, maris, marris, matrice, medaris, montgoris, morice, moris, nerice, nigris, norris, orris, paris, paris', parris, pectoris, pharris, poythress, puris, respress, sarris, seamstress, siris, solaris, sorice, souris, temptress, terris, tortorice, ventress, voris
Umphress sounds like:
umbrage, umpires, uniforce, universe, universes