Black's Law Dictionary (2nd edition)dictionaries

Firmly

A statement tliut an affiant “firmly believes” the contents of the attida-vit Imports a strong or high degree of belief, and is equivalent to saying that he “verily” believes it. Bradley v. Eccles, 1 Browne (Pa.) 258; Thompson v. white, 4 Serg. & R. (Pa.) 137. The operative words in a bond or recognizance, that the obligor is held and “firmly bound,” are equivalent to an acknowledgment of indebtedness and promise to pay. Shattuck v. People, 5 111 477

Source: Black's Law Dictionary 2nd Ed (1910)