as·cer·tain 
(ăs′ər-tān)
(ăs′ər-tān)tr.v. as·cer·tained, as·cer·tain·ing, as·cer·tains
1. To discover with certainty, as through examination or experimentation. See Synonyms at discover.
2. Archaic To make certain, definite, and precise.
[Middle English acertainen, to inform, from Old French acertener, ascertain- : a-, to (from Latin ad-; see AD-) + certain, certain; see CERTAIN.]
as′cer·taina·ble adj.
as′cer·taina·ble·ness n.
as′cer·taina·bly adv.
as′cer·tainment n.
- gentilesse
- gentility
- gentle
- gentle breeze
- gentlefolk
- gentlefolks
- gentleman
- gentleman-at-arms
- gentleman farmer
- "Gentleman Jim."
- gentlemanly
- gentleman's agreement
- gentleman's gentleman
- gentlemen's agreement
- gentleness
- gentlepeople
- gentleperson
- gentlewoman
- gentlewomanly
- gently
- gentoo penguin
- gentrification
- gentrifier
- gentrify
- gentry