Here are some possible words:

machinator
madagascar
magnetizer
maidenhair
mainlander
maintainer
malefactor
malingerer
manchester
mandibular
maneuverer
marylander
matchmaker
mechanizer
merrymaker
mesmerizer
metroliner
micrometer
milliliter
millimeter
misapplier
misbehaver
mismanager
modernizer
moneymaker
montpelier
moonshiner
mudslinger
multilayer
multiplier
multipolar