There are no words in the English language that end with the letter J.

The non-English words that end with the letter ‘J’ are

Hajj : the religious journey to Mecca that all Muslims try to make atleast once in their life time. (the word is listed in the English Dictionaries: a borrowed word)

Taj : For Taj Mahal in Agra

Sutlej: Name of A river in North India ( Proper Noun)

Words ending in ‘J’ sound but having the spelling –‘dge’:

Eg. hedge, wedge, edge, ledge, badge, Judge, Fridge

Hope this helps.

variant of HAJJ

HAJJ

the pilgrimage to Mecca prescribed as a religious duty for Muslims

Taj, raj, haj, reloj, baba gannouj, etc.

As far as native English words, there aren’t any that aren’t abbreviations or alphabetisms.