A three letter word that ends in the letter x could be the word Hex. A hex is a witches curse or spell.
Latex is a 5 letter word. It begins with L and ends with X.
mim
xylophone
miter box
oxeye
Texter
phlox
appendix.
anthrax
Unfix is a 5 letter word. It begins with U and ends with X.
Latex is a 5 letter word. It begins with L and ends with X.
x-raying
xerox
manx
index
PARADOX
Xerox, Xanax