Толковый словарь английского языка Oxford English Reference - flounder

1. v. & n. --v.intr. 1 struggle in mud, or as if in mud, or when wading. 2 perform a task badly or without knowledge; be out of one's depth. --n. an act of floundering. Derivatives flounderer n. Etymology: imit.: perh. assoc. with founder, blunder 2. n. 1 an edible flat-fish, Pleuronectes flesus, native to European shores. 2 any of various flat-fish native to N. American shores. Etymology: ME f. AF floundre, OF flondre, prob. of Scand. orig.