adjective

1. lying or extending across something else; transverse; oblique
2. Obsolete perverse

Etymology: ME thwert < ON thvert, neut. of thverr, transverse < IE *terk-, to turn (prob. < *ter-, to rub with rotary motion > throw) > L torquere, to twist, turn

adverb,

noun

1. a rower's seat extending across a boat
2. a brace extending across a canoe

transitive verb

1. Obsolete to extend or place over or across
2. to hinder, obstruct, frustrate, or defeat (a person, plans, etc.)