Relph rhymes with:
relf, chelf, delph, elf, helf, herself, himself, hisself, itself, myself, oneself, ourself, relf, self, selph, shelf, theirself, themself, yourself
Relph sounds like:
ralf, ralph, relf, relief, relieve, relive, rohlf, rohloff, rolf, rolfe, roloff, rolph