All I know of is a last name that starts with L and ends with M. But I cannot give that out. Sorry.
> Loam .
Mammal
Looms
Larum, linum, locum.
A four letter word that starts with J and ends with M: jism.
A seven (7) letter word that starts with M and ends with O: memento
mob
Uranium
norm
environmentalism
marjoram
minimum
isotherm
malaria
Item.