The Collaborative International Dictionary of English v.0.48:

Poy \Poy\, n. [OF. apui, apoi, a support, prop., staff, F.
   appui, fr. OF. apuier, apoier, to support, F. appuyer, fr.
   [`a] to (L. ad) + OF. pui, poi, a rising ground, hill, L.
   podium. See Podium, Pew.]
   1. A support; -- used in composition; as, teapoy.
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   2. A ropedancer's balancing pole. --Johnson.
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   3. A long boat hook by which barges are propelled against the
      stream. [Prov. Eng.] --Halliwell.
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