The difference between Affirm and Assent

When used as verbs, affirm means to agree, verify or concur, whereas assent means to agree.

Assent is also noun with the meaning: agreement.

check bellow for the other definitions of Affirm and Assent

Affirm as a verb:

To agree, verify or concur; to answer positively.

Examples:

"She affirmed that she would go when I asked her."
Affirm as a verb:

To assert positively; to tell with confidence; to aver; to maintain as true.
Affirm as a verb:

To support or encourage.

Examples:

"They did everything they could to affirm the children's self-confidence."
Affirm as a verb (legal):

To make firm; to confirm, or ratify; especially to assert or confirm, as a judgment, decree, or order, brought before an appellate court for review.

Assent as a noun:

agreement; act of agreeing

Examples:

"I will give this act my assent."