Courtesy rhymes with:
ecstasy, fantasy, accuracy, adequacy, advocacy, agassi, almasy, argosy, aristocracy, autocracy, barkocy, biopharmacy, bureaucracy, candidacy, celibacy, confederacy, conspiracy, degeneracy, delicacy, democracy, diplomacy, ecstasy, embassy, fallacy, fantasy, galasie, geodesy, hennessey, hennessy, heresy, hypocrisy, idiocy, illegitimacy, illiteracy, immediacy, inaccuracy, inadequacy, intimacy, intricacy, jealousy, legacy, legitimacy, leprosy, literacy, lunacy, meritocracy, obstinacy, odyssey, papacy, pharmacy, piracy, pleurisy, policy, primacy, privacy, prophecy, secrecy, semisecrecy, spellacy, supremacy, surrogacy, theocracy
Courtesy sounds like:
carats, card's, cardiac, cardiges, cardis, cardiss, cardosa, cardosi, cardoso, cardoso's, cardoza, cardozo, cards, cards', carducci, carrots, carthage, carts, ceredase, cerritos, charades, chariots, charities, charities', charity's, charts, chertkow, cherts, chordates, chords, cigarette's, cigarettes, cohorts, cordage, cordasco, cordes, cordis, cords, cordts, coretech, corrodes, cortege, cortes, cortese, cortesi, cortex, cortez, corteze, coseratz, court's, courteous, courtesies, courthouse, courthouses, courtis, courtois, courts, courts', coward's, cowardice, cowards, craddock, cradic, cradock, crates, creates, credit's, credits, creditwatch, creeds, cretaceous, crites, critic, critic's, criticize, criticizes, critics, critics', critique, critiques, critz, croat's, croatia's, croats, crotch, crotts, crowd's, crowds, crude's, crudes, crutch, crutches, curt's, curtice, curtis, curtis', curtiss, curts, curtsy