An Etymological Dictionary of Astronomy and Astrophysics

1. A breach of a law or rule; an illegal act.
   

   2. Annoyance or resentment brought about by a perceived insult to or disregard for oneself.
      

   3. The action of attacking someone or something (OxfordDictionaries.com).

See also: M.E. offence, offense, from O.Fr. ofense and directly from L. offensa “an offense, affront, crime,” literally “a striking against,” noun use of fem. p.p. of offendere, → offend.