oriel

• n. 壁から突き出た窓

古フランス語の oriol、廊下、ポーチ、ラテン語の oriolum、広間、おそらく aureolus、金箔、PIE*aus、黄金色、語源的には aurora、ormolu と同じから。後に出窓を指すようになった。

oriel (n.)

"large recessed window," mid-14c., from Old French oriol "hall, vestibule; oriel," of uncertain origin, perhaps from Medieval Latin oriolum "porch, gallery" (mid-13c.), perhaps from Vulgar Latin *auraeolum, dissimilated from aulaeolum, a diminutive of Latin aulaeum "curtain." Despite much research, the sense evolution remains obscure.