The Collaborative International Dictionary of English v.0.48:

Annoy \An*noy"\ ([a^]n*noi"), v. t. [imp. & p. p. Annoyed
   ([a^]n*noid"); p. pr. & vb. n. Annoying.] [OE. anoien,
   anuien, OF. anoier, anuier, F. ennuyer, fr. OF. anoi, anui,
   enui, annoyance, vexation, F. ennui. See Annoy, n.]
   To disturb or irritate, especially by continued or repeated
   acts; to tease; to ruffle in mind; to vex; as, I was annoyed
   by his remarks.
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         Say, what can more our tortured souls annoy
         Than to behold, admire, and lose our joy? --Prior.
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   2. To molest, incommode, or harm; as, to annoy an army by
      impeding its march, or by a cannonade.
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   Syn: To molest; vex; trouble; pester; embarrass; perplex;
        tease.
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The Collaborative International Dictionary of English v.0.48:

Annoy \An*noy"\, n. [OE. anoi, anui, OF. anoi, anui, enui, fr.
   L. in odio hatred (esse alicui in odio, Cic.). See Ennui,
   Odium, Noisome, Noy.]
   A feeling of discomfort or vexation caused by what one
   dislikes; also, whatever causes such a feeling; as, to work
   annoy.
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         Worse than Tantalus' is her annoy.       --Shak.
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