Copernicus rhymes with:
abacus, antiochus, australopithecus, leviticus, spartacus, abacus, adamkus, aeronauticas, americus, amicus, antiochus, arlauskas, atticus, australopithecus, baccus, backus, barcus, barkus, baucus, bockus, bupkus, burkus, cacace, caracas, carcass, caucus, circus, coccus, crocus, damascus, dicus, digalakis, discus, dorcas, dycus, enterococcus, farkas, fiscus, focus, fracas, gekas, georgakis, hocus, ickes', leviticus, linkous, locus, lucas, lucas', lucus, marcinkus, marcus, markkas, markus, medicus, mickus, mikus, mucous, mucus, orcas, pickus, pikus, pincus, pinkus, pocus, raucous, refocus, rimkus, roccas, ruckus, savikas, secaucus, shimkus, spartacus, stankus, staphylococcus, streptococcus, valukas, viscous, waitkus, yarmulkes, zekauskas
Copernicus sounds like:
cabranes, cabrini's, cavernous, caverns, chaperones, chaperoning, chevron's, cockburn's, covering, coverings