4 letters:
mala, mali, malo, maly, meli, melo, mila, milo, mola, moly, myla

5 letters:
maali, mahli, maila, maili, malaa, malai, malay, maler, maley, malie, malla, malli, mallo, mally, maloy, mawla, mayle, ma li, mealy, meili, melee, mella, melli, mello, melly, meloe, meloy, merlu, milah, miler, miley, milla, milli, millo, milly, molaa, molar, molay, moler, moley, molla, molli, mollo, molly, moola, mooli, mouli, muela, mulla, myler

6 letters:
mahlah, mahler, mailer, mailey, mail a, mallee, mallei, maller, malley, mallie, mallow, malloy, mauler, mealer, mealey, mealie, mealor, meal a, meeler, mehler, meiler, melear, mellay, melley, mellie, mellor, mellow, melo-x, merlot, mielie, millar, millau, millay, miller, milley, milli-, millie, milloy, mi lai, mohler, moiler, mollah, moller, molley, mollie, molloy, moolah, mu-law, mullah, mullar, muller, mulley, mulloy, murley, my lai, my law

7 letters:
mai lai, may lay, may lie, millais, moeller, moolley

8 letters:
mailloux, male who, meilleur, moelleux

9 letters:
mile high