I can only find one in Webster's Second International, and it's an abbreviation:
grep '^.of$' /usr/share/dict/words
lof
4-letter words ibex, ilex 5-letter words immix, index, infix 6-letter words icebox, influx 8-letter words intermix, interrex, intersex 10-letter words inheritrix
7 letter words ending in p: * scallop * harelip * airdrop * trollop * bellhop * gumdrop
ammoniaamphorabolognacholeradiplomainertiaminutiasangriatempuraveranda
betaareacodacolacomadatadivagalahulajavalavanovapicapitapumasagatubazona
littleloathelocatelocalelupine
There are no English 4-letter words ending with 'has'.
There are no 4 letter words that end with 'eve'.
Bird
noah
Iraq.
data
echo
alas
dado
coolfoolpooltoolwool
barfbeefbiffbuffbumfchefcoifcuffdeafdoffduffgaffgoofguffgulfhalfhuffjiffleafloafmiff
deedfeedheedneedreedseedweed