The Collaborative International Dictionary of English v.0.48:

Affix \Af*fix"\, v. t. [imp. & p. p. Affixed; p. pr. & vb. n.
   Affixing.] [LL. affixare, L. affixus, p. p. of affigere to
   fasten to; ad + figere to fasten: cf. OE. affichen, F.
   afficher, ultimately fr. L. affigere. See Fix.]
   1. To subjoin, annex, or add at the close or end; to append
      to; to fix to any part of; as, to affix a syllable to a
      word; to affix a seal to an instrument; to affix one's
      name to a writing.
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   2. To fix or fasten in any way; to attach physically.
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            Should they [caterpillars] affix them to the leaves
            of a plant improper for their food.   --Ray.
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   3. To attach, unite, or connect with; as, names affixed to
      ideas, or ideas affixed to things; to affix a stigma to a
      person; to affix ridicule or blame to any one.
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   4. To fix or fasten figuratively; -- with on or upon; as,
      eyes affixed upon the ground. [Obs.] --Spenser.
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   Syn: To attach; subjoin; connect; annex; unite.
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