verb

• (transitive)
  "to espy land    to espy a man in a crowd"
• (transitive)
  "[…] I chaunced to eſpie thys foraſyde Peter talkynge wyth a certeyne ſtraunger a man well ſtryken in age wyth a blake sonne burned face, a longe bearde and a cloke catſe homely about hys ſhoulders, whom by hys fauour & apparrel forthwythe I iudged to be a maryner."
• (transitive)
  "Remember the subtyle worldly wyse Counsellours of Hāmon, the sonne of Naas, king of the Amonites, which when Dauid had sent hys seruauntes to comfort the yong kyng, for the death of hys father, by craftye imaginacions counselled Hāmon not alonely not to receiue them gently, but to entreate them most shamefullye and cruellye, sayinge that they came not to comforte hym, but to espye and search hys lande, so that afterward they brynging Dauid woorde howe euerye thynge stoode, Dauid myghte come and conquer it."
• (transitive)
  "If being the Commander of an army, thou eſpieſt a groſſe and manifeſt error in thine Enemy, look vvell to thy ſelfe, for treachery is not farre off: Hee vvhom deſire of victory binds too much, is apt to ſtumble at his ovvne Ruine."

noun

• (countable)
  "Howe the right and lawes of the land / Were execute, and who durſt take in hand / To diſobey his ſtatutes and decrees, / If they were well kept in all countrees: / Of theſe he made ſubtile inueſtigation / Of his owne eſpie, and other mens relation."
• (countable)
  "Hobomak as confidently aſſured vs it was falſe, and ſent his vvife as an eſpy to ſee; […]"
• (uncountable) The act or process of learning secret information through clandestine means; espionage.