n.
Function: intransitive verb
Etymology: Middle English blusshen, from Old English blyscan to redden; akin to Old English bly ̄ sa flame, Old High German bluhhen to burn brightly
Date: 15th century
1 : to become red in the face especially from shame, modesty, or confusion
2 : to feel shame or embarrassment
3 : to have a rosy or fresh color : BLOOM
– blush · ing · ly \ ' bl ə -shi ŋ -l ē \ adverb