The Collaborative International Dictionary of English v.0.48:

Jostle \Jos"tle\, v. t. [imp. & p. p. Jostled; p. pr. & vb. n.
   Jostling.] [A dim. of joust, just, v. See Joust, and cf.
   Justle.] [Written also justle.]
   To run against and shake; to push out of the way; to elbow;
   to hustle; to disturb by crowding; to crowd against. "Bullies
   jostled him." --Macaulay.
   [1913 Webster]

         Systems of movement, physical, intellectual, and moral,
         which are perpetually jostling each other. --I. Taylor.
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The Collaborative International Dictionary of English v.0.48:

Justle \Jus"tle\, v. i. [Freq. of joust, just, v. i. See
   Joust, v. i., and cf. Jostle.]
   To run or strike against each other; to encounter; to clash;
   to jostle. --Shak.
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         The chariots shall rage in the streets; they shall
         justle one against another in the broad ways. --Nahum
                                                  ii. 4.
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The Collaborative International Dictionary of English v.0.48:

Justle \Jus"tle\, v. t. [imp. & p. p. Justled; p. pr. & vb. n.
   Justling.]
   To push; to drive; to force by running against; to jostle.
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         We justled one another out, and disputed the post for a
         great while.                             --Addison.
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The Collaborative International Dictionary of English v.0.48:

Justle \Jus"tle\, n.
   An encounter or shock; a jostle.
   [1913 Webster]