ascertain
to find out or make certain
Roots
Other words with the cert root
- certain: sure; not in doubt
- certainty: sureness
- certificate: document that certifies something
- certification: official confirmation or credential
- certified: officially confirmed or qualified
- certify: to confirm officially as true
- certitude: complete certainty
Ascertain means work until a fact becomes certain.
The auditors could not ascertain who had approved the altered figures.