Source : Webster's Revised Unabridged Dictionary (1913)

Lentor \Len"tor\ (-t[o^]r), n. [L., fr. lentus pliant, tough,
   slow. See {Lent}, a.]
   1. Tenacity; viscidity, as of fluids.

   2. Slowness; delay; sluggishness. --Arbuthnot.