Dellums rhymes with:
hellams, hellums, kellams, neloms, allums, alums, collums, columns, cullum's, curriculums, emblems, hallums, harlem's, hellams, hellums, hoodlums, jaglom's, jerusalem's, kellams, ludlam's, ludlum's, moslems, muslims, neloms, problem's, problems, salem's, willaims, willems, woolums
Dellums sounds like:
d'alene's, dalliance, dalonzo, dateline's, datelines, dawdling, daylong, deadlines, deadliness, dealing, dealings, delancey, delancy, delange, delaying, delling, delmas, delmonaco, delmonico, delong, detailing, dettling, dialing, dilemmas, dilling, dillon's, dolence, doling, dolinski, dolinsky, dollens, dollins, dooling, dowling, dueling, duling, dulling, dullness, dulmage, dulong, dwelling, dwellings, dylan's, dylans