adj. & n.
--adj.
1. strongly built, sturdy.
2 courageous, resolute, determined (stalwart supporters).
--n. a stalwart person, esp. a loyal uncompromising partisan.
Derivatives:
stalwartly adv. stalwartness n.
Etymology: Sc. var. of obs. stalworth f. OE st{aelig}lwierthe f. st{aelig}l place, WORTH