Merely rhymes with:
myrlie, austerely, bierley, bierly, cavalierly, clearly, dearly, myrlie, nearly, severely, sincerely, yearly
Merely sounds like:
marella, marelli, mariel, marilla, marilu, marla, marley, marlo, marlow, marlowe, marohl, marullo, marylou, mauriello, mayoral, memorial, meriel, merl, merle, merlo, merola, merolla, merrell, merrill, merrily, meryl, meryll, mineral, mirell, mirella, mirelle, mirilla, monorail, monreal, moral, morale, morally, morel, morell, morella, morelli, morello, morial, morillo, morley, morrall, morreale, morrell, morrill, mural, murali, murial, muriel, murillo, murley, murrell, murrill, myrilla, myrlie