opine

the verb "opine" entered english in the late middle english period, borrowed directly from the middle french opiner, which itself stems from the latin opinari, meaning "to think" or "to suppose." the latin root is thought to be of uncertain deeper origin, though some connect it to the proto-indo-european root op- meaning "to choose" or "to prefer," a notion related to forming a judgment. the core semantic thread from its ancient source to the modern word is the act of forming and holding a thought or judgment, which directly leads to its contemporary meaning of formally stating one's opinion. it retains a slightly formal or literary tone compared to more common synonyms like "say" or "think."

Structure: opin (think, judge) + e (verb-forming suffix) opin is from latin opinari (to think, to suppose). the final -e is a common verb-forming suffix in english, often derived from latin or french infinitive endings.