Covering of the eyes
Easton’s Bible Dictionary & Webster’s 1828 Dictionary · Matthew George Easton, Noah Webster
Covering of the eyes - (Easton's Bible Dictionary)
Occurs only in Gen. 20:16. In the Revised Version the rendering is "it (i.e., Abimelech's present of 1,000 pieces of silver to Abraham) is for thee a covering of the eyes." This has been regarded as an implied advice to Sarah to conform to the custom of married women, and wear a complete veil, covering the eyes as well as the rest of the face.
Source of the article
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
Bible Strong combined digital edition