verb (used with object)
Origin of ascertain
Examples from the Web for ascertaining
How far such welcome and adoption were voluntary we have no means of ascertaining.The Cradle of Mankind|W.A. Wigram
I regret that my want of osteological science prevented me from ascertaining to what animal these bones had belonged.
Happily, we shall never have an opportunity of ascertaining whether I am right.Josephine|John S. C. Abbott
We even forgot the luncheon baskets; and no one thought of ascertaining what the blast had accomplished.A Busy Year at the Old Squire's|Charles Asbury Stephens
After ascertaining that the fox had not yet passed, they took their stations.Frank, the Young Naturalist|Harry Castlemon
British Dictionary definitions for ascertaining
Word Origin for ascertain
Word Origin and History for ascertaining
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.