Stivoric rhymes with:
borek, boric, caloric, choric, corrick, couric, doric, dysphoric, euphoric, florek, historic, jirik, lorek, lorick, meteoric, moric, norick, orick, orrick, perchloric, prehistoric, roehrich, rohrich, rorick, siewiorek, sirek, warrick, yorrick, zorich
Stivoric sounds like:
sidebars, staffers, stauffer's, stavros, stayovers, steppers, stivers, stoffers, stopovers, stoppers, sudbury's, swedberg