sad
adj.β Β«For Cathy Riddle, another Appalachian Fair champion who uses White Lily for everything from green tomato bread to βsadβ dumplings (the kind with a chewy center), the selling point is consistent good results.Β» ββBiscuit Bakers’ Treasured Mill Moves North” by Shaila Dewan in Knoxville, Tennessee New York Times June 18, 2008. (source: Double-Tongued Dictionary)
Sad is a very old word that means heavy – “Sad Iron” is a heavy iron.