Kumquat rhymes with:
arnott, aydelott, batibot, berthelot, billiot, callicott, cannot, crescott, eliott, ellicott, epcot, foxtrot, gobinot, herriott, izatt, kearfott, labat, lysaght, penobscot, pilat, polyglot, prescott, racicot, sabat, simplot, subplot, theriot, tourtelot, vienot, walcot, walcott, wescott, wolgamott, wonnacott, woollcott
Kumquat sounds like:
kansas-city, keenest, kenesset, kennecott, kienast, kincade, kincaid, kinkade, kinkead, kinoshita, kinst, kjenstad, knackstedt, knecht, knesset, knight, knighted, knighthood, knocked, knockout, knost, knust, kunst