The Collaborative International Dictionary of English v.0.48:

Forth \Forth\, v.[AS. for[eth], fr. for akin to D. voort, G.
   fort [root]78. See Fore, For, and cf. Afford,
   Further, adv.]
   1. Forward; onward in time, place, or order; in advance from
      a given point; on to end; as, from that day forth; one,
      two, three, and so forth.
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            Lucas was Paul's companion, at the leastway from the
            sixteenth of the Acts forth.          --Tyndale.
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            From this time forth, I never will speak word.
                                                  --Shak.
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            I repeated the Ave Maria; the inquisitor bad me say
            forth; I said I was taught no more.   --Strype.
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   2. Out, as from a state of concealment, retirement,
      confinement, nondevelopment, or the like; out into notice
      or view; as, the plants in spring put forth leaves.
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            When winter past, and summer scarce begun,
            Invites them forth to labor in the sun. --Dryden.
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   3. Beyond a (certain) boundary; away; abroad; out.
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            I have no mind of feasting forth to-night. --Shak.
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   4. Throughly; from beginning to end. [Obs.] --Shak.
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   And so forth, Back and forth, From forth. See under
      And, Back, and From.

   Forth of, Forth from, out of. [Obs.] --Shak.

   To bring forth. See under Bring.
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