a word in one language that is similar in form or sound to a word in another language but has a different meaning and is not etymologically related: for example, Spanish burro “donkey” and Italian burro “butter” are false cognates.
I think it would be PRETERITE and then i don’t think it would just be one letter- i think it would end in “QUE” and it would depend what word it is for the translation to english