The Collaborative International Dictionary of English v.0.48:

Loft \Loft\ (l[o^]ft), n. [Icel. lopt air, heaven, loft, upper
   room; akin to AS. lyft air, G. luft, Dan. loft loft, Goth.
   luftus air. Cf. Lift, v. & n. ]
   1. That which is lifted up; an elevation. Hence, especially:
      (a) The room or space under a roof and above the ceiling
          of the uppermost story.
      (b) A gallery or raised apartment in a church, hall, etc.;
          as, an organ loft.
      (c) A floor or room placed above another; a story.
          especially, an upper story located in a building with
          a business below, often having no partitions, and in
          cities sometimes converted into living quarters, or
          used as studios for artists.
          [1913 Webster +PJC]

                Eutychus . . . fell down from the third loft.
                                                  --Acts xx. 9.
          [1913 Webster]

   2. (Golf) Pitch or slope of the face of a club (tending to
      drive the ball upward).
      [Webster 1913 Suppl.]

   On loft, aloft; on high. Cf. Onloft. [Obs.] --Chaucer.
      [1913 Webster]