opine

Etymology 1

From Middle French opiner, from Latin opīnor (“to hold as an opinion”), from *opīnus (“thinking, expecting”), only in negative nec-opīnus (“not expecting”) and in-opīnus (“not expected”); akin to optō (“to choose, desire”), and to apīscor (“to obtain”); see optate and opt.

verb

1. (intransitive, transitive) To have or express an opinion; to state as an opinion; to suppose, consider (that).
   I opined that matters would soon become considerably worse.
   "Your decisions," she opined, "have been unfailingly disastrous for this company."
2. (intransitive) To give one's formal opinion (on or upon something).
   I had to opine on the situation because I thought a different perspective was in order.

Etymology 2

From Ancient Greek ὀπός (opós, “juice of a plant”) + -ine.

noun

1. (biochemistry) Any of a class of organic compounds, derived from amino acids, found in some plant tumours