Etc rhymes with:
etcetera, cetera, etcetera, cetera, etcetera, cetera, etcetera, reitera, acampora, acura, agora, amphora, anaphora, andera, ankara, aventura, bachera, barbara, camera, cetera, cholera, corpora, deborah, diaspora, eleuthera, etcetera, genera, imbera, kuchera, lenora, maquiladora, plethora, reitera, samara, tempera, theora, vanora
Etc sounds like:
eades, eads, eads', eats, ed's, eddie's, eddies, edds, edes, edge, edges, edgeway, edgeways, edgewise, edgy, edick, edits, etch, etches, etess, ethic, ethics, ethos, etsu, etudes, eudocia, eudosia, eudoxia, eutsey, eyetech, eyetech's