1. to authenticate or certify (a document or signature) as a notary public
Usage: British English spelling; American English uses 'notarizes'; third-person singular present tense

Examples

• The notary notarises the contract before it is submitted to the court.
• She notarises documents for clients at her law office.
• The bank requires that your signature be notarised by an official notary public.
• He notarises wills and power of attorney forms regularly.
• The document cannot be accepted unless a notary notarises it.