The Collaborative International Dictionary of English v.0.48:

-fy \-fy\ [Through French verbs in -fier, L. -ficare, akin to
   facere to do, make. See Fact.]
   A suffix signifying to make, to form into, etc.; as, acetify,
   amplify, dandify, Frenchify, etc.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fy \Fy\, interj. [See Fie, interj.]
   A word which expresses blame, dislike, disapprobation,
   abhorrence, or contempt. See Fie.
   [1913 Webster]