Which preposition to use with eyewink

at Occurrences 1%

How should she but couch, Lick the dry lips, unsheathe the blunted claw, Catch 'twixt her placid eyewinks at what chance Old bloody half-forgotten dream may flit, Born when herself was novice to the taste, The while she lets youth take its pleasure" (iv. 40).

of Occurrences 1%

" At which the unfortunate Rack came within an eyewink of fainting.

Which preposition to use with  eyewink