Rex is latin for KING, not sure what Lou is
prex
t-rex
Leo, Rex
Pyrex, Xerox
Pyrex, a strong heat-resistant glass
Envy Is A 4-Letter Word
4 letter word for final
Salt is a 4 letter word for seasoning.
4 letter word for drum is "Dhol".
this
Since the word "rex" is Latin for "king," it's only logical to note that the German word for "rex" is "könig" - the German word for "king."
In Pig Latin, "Rex" would be "Ex-ray." The first letter "R" is moved to the end of the word and the suffix "ay" is added. So "Rex" becomes "Ex-ray."
GLOW. GLOW is a 4 letter word that can be used in place of the word 'Shine'