English
sagproof
From sag + -proof.
Today it means
adj Resistant to sagging; retaining its shape.
Sources
Sources: Wiktionary, “sagproof”. 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 / sagproof