blench
verb [intransitive] (British English, formal)to react to something in a way that shows you are frightened (因惊吓而)退缩;惊悸 He blenched when he heard her name announced. 当他听到宣布她的名字时,他退缩了。
Word OriginOld English blencan ‘deceive’, of Germanic origin; later influenced by blink.