2. To shut the eyes quickly; to close the eyelids with a quick motion. He must wink, so loud he would cry. (Chaucer) And I will wink, so shall the day seem night. (Shak) They are not blind, but they wink. (Tillotson)
5. To avoid taking notice, as if by shutting the eyes; to connive at anything; to be tolerant; generally with at. The times of this ignorance god winked at. (acts xvii. 30) And yet, as though he knew it not, His knowledge winks, and lets his humors reign. (herbert) Obstinacy can not be winked at, but must be subdued. (locke)
Origin: OE. Winken, AS. Wincian; akin to D. Wenken, G. Winken to wink, nod, beckon, OHG. Winchan, Sw. Vinka, Dan. Vinke, AS. Wancol wavering, OHG. Wanchal wavering, wanchn to waver, G. Wanken, and perhaps to E. Weak; cf. AS. Wincel a corner. Cf. Wench, Wince.