The Collaborative International Dictionary of English v.0.48:

Seck \Seck\, a. [F. sec, properly, dry, L. siccus.]
   Barren; unprofitable. See Rent seck, under Rent.
   [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

SECK. This word has two significations. 1. It means a warrant of remedy by
distress. Litt. s. 218; and vide Rent. 2. It imports want of present fruit
or profit, as in the case of the reversion without rent or other service,
except fealty. Co. Litt. 151 b, note 5.