minimum
manx
alumatomexamitem
Monster
Eight-letter words that start with I and end with M include: Isotherm Idealism
There are no three-letter English words that start with M and end with H.
mushroom,monogram,momentum,
mac
Your question is at odds with what I know of the English language. There are many words that start with the letter "m" and end with the letter "t". Mutt Mat Met Mitt Mart Malt Molt Merit
organism optimism ostracism
spade
mordant
Orpheum