Meaning

noun a condensed but memorable saying embodying some important fact of experience that is taken as true by many people

originFrom Middle English byword, byworde (“proverb”), from Old English bīword, bīwyrd, bīwyrde (“proverb, household word", also "adverb”), from Proto-West Germanic *bīwurdī, equivalent to by- + word. Compare Latin proverbium, which byword may possibly be a translation of. Cognate with Old High German pīwurti (“proverb”). Compare also Old English bīspel (“proverb, example”), bīcwide (“byword, proverb,…

Etymology from Wiktionary, CC BY-SA 3.0