-proof
Added to a noun to form an adjective denoting imperviousness to that noun.
Suffix
- Added to a noun to form an adjective denoting imperviousness to that noun.
- Added to a noun to form a verb denoting a process to make something impervious to that noun.
Origin
From the adjective proof (“fully resistant”), from the same Old French root as prove.
Forms
Related
Derived
acid-proof bug-proof burglar-proof cat-proof crash-proof dog-proof earthquake-proof explosion-proof frost-proof future proof hammer-proof hurricane-proof idiotproof inflation-proof limeproof moisture-proof pig-proof rabbitproof rabbit-proof rust-proof sale-proof saltproof scaleproof shellproof