Everyday
来自Big Physics
wiktionary
From Middle English everidayes, every daies, every dayes(“everyday, daily, continual, constant”, adjective, literally “every day's”), equivalent to every + day.
etymonline
everyday (adj.)
1630s, "worn on ordinary days," as opposed to Sundays or high days, from noun meaning "a week day" (late 14c.), from every (adj.) + day (n.). Extended sense of "to be met with every day, common" is from 1763.
