Webster's Revised Unabridged Dictionary · 1913

Optative

Optative , adjective

[Latin optativus: compare French optatif.]

Expressing desire or wish. — Fuller
Collocations (1)
Optative mood (Grammar) , that mood or form of a verb, as in Greek, Sanskrit, etc., in which a wish or desire is expressed.

Optative , noun

[Compare French optatif.]

1.
Something to be desired. [Rare] — Bacon
2.
(Grammar) The optative mood; also, a verb in the optative mood.