The Collaborative International Dictionary of English v.0.48:

Lanch \Lanch\ (l[.a]nch), v. t. [imp. & p. p. Lanched
   (l[.a]ncht); p. pr. & vb. n. Lanching. See Launch,
   Lance.]
   To throw, as a lance; to let fly; to launch.
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         See Whose arm can lanch the surer bolt.  --Dryden &
                                                  Lee.
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The Collaborative International Dictionary of English v.0.48:

Launch \Launch\ (l[add]nch or l[aum]nch), v. i. [imp. & p. p.
   Launched (l[add]ncht or l[aum]ncht); p. pr. & vb. n.
   Launching.] [OE. launchen to throw as a lance, OF.
   lanchier, another form of lancier, F. lancer, fr. lance
   lance. See Lance.] [Written also lanch.]
   1. To throw, as a lance or dart; to hurl; to let fly.
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   2. To strike with, or as with, a lance; to pierce. [Obs.]
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            Launch your hearts with lamentable wounds.
                                                  --Spenser.
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   3. To cause to move or slide from the land into the water; to
      set afloat; as, to launch a ship.
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            With stays and cordage last he rigged the ship,
            And rolled on levers, launched her in the deep.
                                                  --Pope.
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   4. To send out; to start (one) on a career; to set going; to
      give a start to (something); to put in operation; as, to
      launch a son in the world; to launch a business project or
      enterprise.
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            All art is used to sink episcopacy, and launch
            presbytery in England.                --Eikon
                                                  Basilike.
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