Advertisement

ascertain (v.)

early 15c., "to inform, to give assurance" (a sense now obsolete), from Anglo-French acerteiner, Old French acertener "to assure, certify" (13c.), from a- "to" (see ad-) + certain "sure, assured" (see certain). Meaning "find out for sure by experiment or investigation" is first attested 1794. Related: Ascertained; ascertaining.

Others are reading

Advertisement
Advertisement
Definitions of ascertain from WordNet

ascertain (v.)
establish after a calculation, investigation, experiment, survey, or study;
Synonyms: determine / find / find out
ascertain (v.)
be careful or certain to do something; make certain of something;
Synonyms: see / check / insure / see to it / ensure / control / assure
ascertain (v.)
find out, learn, or determine with certainty, usually by making an inquiry or other effort;
Synonyms: determine / check / find out / see / watch / learn
ascertain (v.)
learn or discover with certainty;
From wordnet.princeton.edu