Meaning

noun a rosy color (especially in the cheeks) taken as a sign of good health

noun sudden reddening of the face (as from embarrassment or guilt or shame or modesty)

verb turn red, as if in embarrassment or shame

originFrom Middle English blusshen, bluschen, blusschen, blisshen, from Old English blysċan (“to be red; shine”), perhaps from Proto-Germanic *blaskijaną, from *blasǭ (“burning candle; torch”) or alternatively from Proto-Germanic *bluskijaną, from *blusjǭ (“torch”), ultimately from Proto-Indo-European *bʰel-. Cognate with Middle Low German blöschen (“to blush”). Compare also Old English blysian (“to…

Etymology from Wiktionary, CC BY-SA 3.0