The Collaborative International Dictionary of English v.0.48:

Para- \Par"a-\ [Gr. para` beside; prob. akin to E. for- in
   forgive. Cf. For-.]
   1. A prefix signifying alongside of, beside, beyond, against,
      amiss; as parable, literally, a placing beside; paradox,
      that which is contrary to opinion; parachronism.
      [1913 Webster]

   2. (Chem.) A prefix denoting:
      (a) Likeness, similarity, or connection, or that the
          substance resembles, but is distinct from, that to the
          name of which it is prefixed; as paraldehyde,
          paraconine, etc.; also, an isomeric modification.
      (b) Specifically: (Organ. Chem.) That two groups or
          radicals substituted in the benzene nucleus are
          opposite, or in the respective positions 1 and 4; 2
          and 5; or 3 and 6, as paraxylene; paroxybenzoic acid.
          Cf. Ortho-, and Meta-. Also used adjectively.
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Para \Pa*ra"\, n. [Turk., fr. Per. p[=a]rah a piece.]
   A piece of Turkish money, usually copper, the fortieth part
   of a piaster, or about one ninth of a cent.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Par'a \Pa*r['a]"\, n.
   1. The southern arm of the Amazon in Brazil; also, a seaport
      on this arm.
      [Webster 1913 Suppl.]

   2. Short for Par['a] rubber.
      [Webster 1913 Suppl.] Para-anaesthesia