The Collaborative International Dictionary of English v.0.48:

Allot \Al*lot"\, v. t. [imp. & p. p. Allotted; p. pr. & vb. n.
   Allotting.] [OF. aloter, F. allotir; a (L. ad) + lot lot.
   See Lot.]
   1. To distribute by lot.
      [1913 Webster]

   2. To distribute, or parcel out in parts or portions; or to
      distribute to each individual concerned; to assign as a
      share or lot; to set apart as one's share; to bestow on;
      to grant; to appoint; as, let every man be contented with
      that which Providence allots him.
      [1913 Webster]

            Ten years I will allot to the attainment of
            knowledge.                            --Johnson.
      [1913 Webster]