Romanian word abajur comes from French abattre, French jour (Day. Daylight, light. Opening, aperture.)

Detailed word origin of abajur

Dictionary entry	Language	Definition
abattre	French (fra)	(pronominal) to descend upon with violence or furor. (pronominal, of lightning) to strike. (reflexive) to fall down, especially of tall things, such as trees. To butcher; to slaughter for meat. To cut down (a tree). To destroy or demolish (a wall). To shoot dead.
jour	French (fra)	Day. Daylight, light. Opening, aperture.
abat-jour	French (fra)	(architecture) skylight. (dated) eyeshade. Lampshade.
abajur	Romanian (ron)	Lampshade.