— ascertainable , adj. — ascertainably , adv. — ascertainer , n. — ascertainment , n.
/as'euhr tayn"/ , v.t.
1. to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
2. Archaic. to make certain, clear, or definitely known.
[ 1400-50; late ME, var. of ASSERTAIN, ACERTAIN acertain- (tonic s. of acertener to make certain), equiv. to a- A- 5 + certain CERTAIN ]
Syn. 1. See learn .