There are many 3 letter words ending in "re". a r e is are, which ends in re, and is a 3 letter word. there are many others.
4 letter word ending in qi
Oto
poi, lei
No 3-letter English words known that end in 'of'
-ial
suq
ray
ate
hue
Box...
off,
There are none. Not even a 3 letter word