The word "sheriff", as for example the law-enforcement officer in American Western movies, is definitely NOT from the Arabic word شريف. The word شريف here is a transliteration of "sheriff" that became popular in TV and movie Arabic subtitling.

Does the word sheriff come from Sharif?

The name has no etymological connection with the English term sheriff, which comes from the Old English word scīrgerefa, meaning "shire-reeve", the local reeve (enforcement agent) of the king in the shire (county).

Where does the word Sherif come from?

The word Sheriff is derived from the Shire-reeve, who was the most powerful English law authority figure, even before 1000 A.D. The Shire-reeve, in contrast to a reeve (in charge of mere tenths), was responsible for both the order of the land within his banded group of a hundred families (shire) and the call of the " ...