v. & n.
v.intr. 1 a develop a pink tinge in the face from embarrassment or shame. b (of the face) redden in this way. 2 feel embarrassed or ashamed. 3 be or become red or pink.
n. 1 the act of blushing. 2 a pink tinge. at first blush on the first glimpse or impression. spare a person's blushes refrain from causing embarrassment esp. by praise.
[ ME f. OE blyscan ]