According to SOWPODS (the combination of Scrabble dictionaries
used around the world) there are 5 words with the pattern --MPKI-S.
That is, eight letter words with 3rd letter M and 4th letter P and
5th letter K and 6th letter I and 8th letter S. In alphabetical
order, they are:
bumpkins
limpkins
lumpkins
pumpkins
simpkins