Deaf"en (?), v. t. [imp. & p. p. Deafened (?); p. pr. & vb. n. Deafening.] [From Deaf.]

1.

To make deaf; to deprive of the power of hearing; to render incapable of perceiving sounds distinctly.

Deafened and stunned with their promiscuous cries. Addison.

2. Arch.

To render impervious to sound, as a partition or floor, by filling the space within with mortar, by lining with paper, etc.

© Webster 1913.