GNU Collaborative International Dictionary of English

Found one definition

1.       
   Foy (foi), n. [F. foi, old spelling foy, faith. See Faith.]
   1. Faith; allegiance; fealty. [Obs.]  Spenser.
   
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   2. A feast given by one about to leave a place. [Obs.]
   
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   He did at the Dog give me, and some other friends of his, his foy, he being to set sail to-day. Pepys.
   
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