Defn: Capable of being opined or thought. Holland.

OPINATION
Op`i*na"tion, n. Etym: [L. opinatio. See Opine,]

Defn: The act of thinking; a supposition. [Obs.]

OPINATIVE
O*pin"a*tive, a.

Defn: Obstinate in holding opinions; opinionated. [Obs.] —
O*pin"a*tive*ly, adv. [Obs.] Burton. Sir T. More.

OPINATOR
Op"i*na`tor, n. Etym: [L.]

Defn: One fond of his own opinious; one who holds an opinion. [Obs.]
Glanvill.

OPINE
O*pine", v. t. & i. [imp. & p. p. Opined; p. pr. & vb. n. Opining.]
Etym: [L. opinari, p.p. opinatus; akin to opinus (in comp.) thinking,
and perh. to E. apt: cf. F. opiner.]

Defn: To have an opinion; to judge; to think; to suppose. South.

OPINER
O*pin"er, n.