abat-jour - Wiktionary
2019-3-18 · English [] Etymology []. French abattre jour any contrivance or apparatus to admit light, or to throw it in a desired direction, as a lamp-shade . Noun []. abat-jour (plural abat-jours) . A skylight, or any beveled aperture made in the wall of an apartment or in a roof, for the better admission of …
