Pankonin rhymes with:
antonin, behunin, simonin, wolanin, antonin, behunin, benin, bonin, bonnin, bradykinin, branin, canin, chanin, chernin, clanin, clendenin, cronin, dennin, dobrynin, dornan, dornin, dubinin, durnin, fannin, henin, jenin, junine, kunin, lignin, magnin, melatonin, monnin, ronin, runnin', seratonin, serotonin, simonin, tinnin, wolanin
Pankonin sounds like:
panmunjom, pengassan, penguin, pennsauken, pension, penson, phoenician, pi-meson, pinckney, pinkham, pinkney, pinshan, pinson, pinzon, pomicino, ponchan, punkin