verb (used with object)
- ascension day,
Origin of ascertain
Examples from the Web for ascertain
Last week, a Politico reporter phoned me to ascertain my thoughts on the new war.
We need a Special Select Committee on Benghazi to ascertain these facts and ensure that such a disaster never occurs again.
However, there is little existing research to ascertain this, or much else.
I try one final time to ascertain with Bradshaw what is in the ejaculatory mix.New York’s Naughtiest Show (Maybe Avoid the Front Row)|Tim Teeman|January 18, 2014|DAILY BEAST
For decades, people have been trying to ascertain the difference, but it mostly comes down to a level of taste.
He calls for his attendant Herbert, who is sent to ascertain the cause of this midnight commotion.
A mate was now sent into each, to ascertain what might be discovered to windward.Sea Stories|Various
Whether de Blainville's or Sowerby's plate appeared first I cannot ascertain.A Monograph on the Sub-class Cirripedia (Volume 2 of 2)|Charles Darwin
Where to direct my steps was the difficult point to ascertain.Olla Podrida|Frederick Marryat (AKA Captain Marryat)
It was, however, very tantalising, as we were anxious to ascertain what had become of the Dolphin.A Yacht Voyage Round England|W.H.G. Kingston
Word Origin for ascertain
early 15c., "to inform, to give assurance," from Anglo-French acerteiner, Old French acertener "to assure, certify" (13c.), from a "to" (see ad-) + certain "certain" (see certain). Modern meaning of "find out for sure by experiment or investigation" is first attested 1794. Related: Ascertained; ascertaining.