Mump.
mass
mars
A four-letter word for "jug" starting with "e" is usually "ewer."
A synonym for fable (4 letters, beginning with M) is myth.
magnums
MakeMindMineMastMassMustMeatMeetMinkMireMadeMaidMazeMoreMood
Mini
Magazines
majormakermarchmarshmarrymatermeatymelonmeritmerrymessymetermetreminceminormirthmistymitermitremonthmoosemossymotelmotormoundmousemoultmouthmovedmovermunchmusicmusty
a mob
malaria