Romanian word fire comes from Romanian fi (To be.), Romanian -re

Detailed word origin of fire

Dictionary entry	Language	Definition
fi	Romanian (ron)	To be.
-re	Romanian (ron)	Attached to the ends of verb infinitives to form nouns, meaning the action or result of; -ing, -ation.
fire	Romanian (ron)	Character, temper, disposition. Essence, substance, nature. Mind.

Words with the same origin as fire