Webster’s Revised Unabridged Dictionary · 1913
Desitive
Des′i·tive (dĕs′ĭ·tĭv), a. Final; serving to complete; conclusive. [Obs.] "Desitive propositions." I. Watts.
Des′i·tive, n. (Logic) A proposition relating to or expressing an end or conclusion. [Obs.] I. Watts.