in Logic, a positive judgment, implying the union or junction of the two terms of a proposition.

Affirmation used to be applied to the privilege enjoyed by Quakers of making an affirmation or declaration where other persons required to make oath in civil matters. The form now more commonly called declaration has been extended to criminal inquiries, and the privilege of taking it combines Moravians and Separatists. In other instances, affirmations or declarations have been substituted for oaths. See Affidavit.

Affirmation is also used for the ratifying or confirming of the sentence or decree of some inferior court. Thus we