Ascertain Definition

ăsər-tān
ascertained, ascertaining, ascertains
verb
ascertained, ascertaining, ascertains
To discover with certainty, as through examination or experimentation.
American Heritage
To make certain or definite.
Webster's New World
To make certain, definite, and precise.
American Heritage
To find out with certainty.
Webster's New World

To find out definitely; to discover or establish.

As soon as we ascertain what the situation is, we can plan how to proceed.
Wiktionary

Origin of Ascertain

  • Middle English acertainen to inform from Old French acertener ascertain- a- to (from Latin ad- ad–) certain certain certain

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French acertener, from (a- (“to, towards”) + certener (“make sure of”), from the adjective certain.

    From Wiktionary

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