the world > action or operation > carrying out > observance or carrying out a promise, law, etc. > observe or carry out a promise, law, etc. [verb (transitive)] > specifically a promise (3)
To perform (a promise), pay (a vow). Obsolete.
In phrases, asto make (hold, pay, keep,†yieldor break) a vow.
transitive. To fulfil, carry out (a pledge or promise).