English
ratproof
From rat + -proof.
Formed from rat + -proof
Today it means
adj Resistant to damage caused by rats.
Sources
Sources: Wiktionary, “ratproof”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / ratproof