adj. & n.
adj. (sturdier, sturdiest) 1 robust; strongly built. 2 vigorous and determined (sturdy resistance).
n. vertigo in sheep caused by a tapeworm larva encysted in the brain. sturdied adj. (in sense of n.). sturdily adv. sturdiness n.
[ ME 'reckless, violent', f. OF esturdi, estourdi past part. of estourdir stun, daze ult. f. L ex EX-(1) + turdus thrush (taken as a type of drunkenness) ]