What does "affix" mean?

Affix: To fix or fasten in any way; to attach physically. Should they [caterpillars] affix them to the leaves of a plant improper for their food. Ray.

Additional senses

  1. 2.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.
  2. 3.To fix or fasten figuratively; -- with on or upon; as, eyes affixed upon the ground. [Obs.] Spenser.
  3. 4.That which is affixed; an appendage; esp. one or more letters or syllables added at the end of a word; a suffix; a postfix.

Sources