Source : Webster's Revised Unabridged Dictionary (1913)

Lenten \Lent"en\ (l[e^]nt"'n), n.
   Lent. [Obs.] --Piers Plowman.

Lenten \Lent"en\, a. [From OE. lenten lent. See {Lent}, n. ]
   1. Of or pertaining to the fast called Lent; used in, or
      suitable to, Lent; as, the Lenten season.

            She quenched her fury at the flood, And with a
            Lenten salad cooled her blood.        --Dryden.

   2. Spare; meager; plain; somber; unostentatious; not abundant
      or showy. ``Lenten entertainment.'' `` Lenten answer.''
      --Shak. `` Lenten suit.'' --Beau. & Fl.

   {Lenten color}, black or violet. --F. G. Lee.

Source : WordNet®

lenten
     adj : of or relating to or suitable for Lent; "lenten food"