\Pre*scrip"tive\, a. [L. praescriptivus of a
demurrer or legal exception.] (Law)
Consisting in, or acquired by, immemorial or long-continued
use and enjoyment; as, a prescriptive right of title;
pleading the continuance and authority of long custom.
      The right to be drowsy in protracted toil has become
      prescriptive.                            --J. M. Mason.