Gervase rhymes with:
disservice, nervous, service, beavis, bodhisattvas, canvas, canvass, chivas, corvus, covas, crevice, davis, davis', disservice, grievous, gustavus, holvis, holvis', jarvis, mischievous, navas, nervous, novice, pelvis, provus, service, synovus
Gervase sounds like:
garbacz, garbage, garp's, garps, gearbox, gearboxes, geographic, geographic's, gerbasi, gerbig, gervais, gervasi, gervasio, giraffes, graboski, grabowski, grabs, grabski, graffius, grapage, grapes, graphic, graphics, graphics', graphs, graves, graves's, gravies, gravois, grbavica, greaves, grieves, grievous, griffey's, griffis, gripes, grips, grivas, grooves, groppy's, group's, groupies, groups, groups', grove's, groves, grubaugh, grubbs, grubs, gurevich