Origin of opine
OTHER WORDS FROM opineun·o·pined, adjective
WORDS THAT MAY BE CONFUSED WITH opineopine , opinion
How to use opine in a sentence
Somers started ranting and opining decades before Amanda Bynes had even opened a Twitter account.Suzanne Somers’s 13 Craziest Quotes: Sex, Adam Lanza, Patrick Swayze, and More|Amy Zimmerman|October 30, 2013|DAILY BEAST
All that opining may have cost him a shot at the screenplay, as perhaps did naming his dream Christian Greys.
There's nothing wrong with opining based on the information you have; the problem is with calling the results a "fact".
"It's a factor of instability," Le Point quotes Thomas Hollande opining.
The vast majority of people opining on these questions—myself very much included—lack the expertise to answer.Experts Say Iran Attack Is Irrational, Yet Hawks Are Winning the Debate|Peter Beinart|February 21, 2012|DAILY BEAST
Bashville, the footman, had risked his popularity there by opining that Miss Goff was a fine young woman.Cashel Byron's Profession|George Bernard Shaw
A marked distinction between the two is, that Knowing or Cognition is infallible — Opining is fallible.
Since Cognition is one power or faculty, and Opining another — the object of one must be different from the object of the other.
I may, perhaps, be justified in opining that Bonebreaker has before this left the establishment.Phineas Redux|Anthony Trollope
Mrs. Doria bowed to the System for another, not opining when it would be her turn to bow for herself.The Ordeal of Richard Feverel, Complete|George Meredith