dampproof

[ damp-proof ]

adjective

1. resistant to dampness or the effects of dampness.

verb (used with object)

1. to make dampproof.

Word History and Origins

Origin of dampproof¹

First recorded in 1880–85; damp + -proof

Example Sentences

Here all U. S. records will be filed, each instantly accessible in lightproof, dampproof, fireproof tiers.

From Time Magazine Archive