An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

1) To make unclear or indistinct.
2) To fail to distinguish between; associate by mistake; confound (Dictionary.com).

Back formation from confused, M.E. confused, from O.fr. confus, from L. confusus, p.p. of confundere, → confound.

→ confound.

1) (Of a person) Unable to think clearly; perplexed.
2) Lacking order and so difficult to understand. Disordered.

Past participle of → confuse.