The Collaborative International Dictionary of English v.0.48:

Separate \Sep"a*rate\, v. t. [imp. & p. p. Separated; p. pr. &
   vb. n. Separating.] [L. separatus, p. p. of separare to
   separate; pfref. se- aside + parare to make ready, prepare.
   See Parade, and cf. Sever.]
   1. To disunite; to divide; to disconnect; to sever; to part
      in any manner.
      [1913 Webster]

            From the fine gold I separate the alloy. --Dryden.
      [1913 Webster]

            Separate thyself, I pray thee, from me. --Gen. xiii.
                                                  9.
      [1913 Webster]

            Who shall separate us from the love of Christ?
                                                  --Rom. viii.
                                                  35.
      [1913 Webster]

   2. To come between; to keep apart by occupying the space
      between; to lie between; as, the Mediterranean Sea
      separates Europe and Africa.
      [1913 Webster]

   3. To set apart; to select from among others, as for a
      special use or service.
      [1913 Webster]

            Separate me Barnabas and Saul for the work whereunto
            I have called thaem.                  --Acts xiii.
                                                  2.
      [1913 Webster]

   Separated flowers (Bot.), flowers which have stamens and
      pistils in separate flowers; diclinous flowers. --Gray.
      [1913 Webster]