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spy
I
\\ˈspī\\ verb
(spied ; spy·ing)
 ETYMOLOGY  Middle English spien, from Anglo-French espier, of Germanic origin; akin to Old High German spehōn to spy; akin to Latin specere to look, look at, Greek skeptesthai & skopein to watch, look at, consider
 DATE  13th century
transitive verb
1. to watch secretly usually for hostile purposes
2. to catch sight of : see
3. to search or look for intensively — usually used with out
    spy out places fit for vending…goods — S. E. Morison
intransitive verb
1. to observe or search for something : look
2. to watch secretly as a spy

II
noun
(plural spies)
 DATE  13th century
1. one that spies:
  a. one who keeps secret watch on a person or thing to obtain information
  b. a person employed by one nation to secretly convey classified information of strategic importance to another nation; also : a person who conveys the trade secrets of one company to another
2. an act of spying

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