Jarvis rhymes with:
corvus, beavis, bodhisattvas, canvas, canvass, chivas, corvus, covas, crevice, davis, davis', disservice, gervase, grievous, gustavus, holvis, holvis', mischievous, navas, nervous, novice, pelvis, provus, service, synovus
Jarvis sounds like:
jarvik, jarvis's, jerabek, jerboas, jervis