出典:Wiktionary
出典:『Wiktionary』 (2026/04/11 03:01 UTC 版)
From 中期英語 bryghtnes, brightnesse, from 古期英語 beorhtnes (“brightness, splendor”), from Proto-West Germanic *berhtnassī, equivalent to bright + -ness. Cognate with Old High German berahtnessī, berahtnessi (“brightness”).
brightness (usually uncountable, plural brightnesses)
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