Meaning

noun a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat

verb hinder or prevent (the efforts, plans, or desires) of

originFrom Middle English thwerte, from the adjective thwert (“obstinate, perverse”), from Old Norse þvert, neuter of þverr (“transverse”). Cognates The English adjective is cognate with Danish tvær (“sullen, sulky”), Gothic 𐌸𐍅𐌰𐌹𐍂𐌷𐍃 (þwairhs, “angry”), Middle Dutch dwers, dwars (modern Dutch dwars (“crosswise, transverse; slantwise, askew; stubbornly disobedient”)), Norwegian tvert, tvært, Old Frisian…

Etymology from Wiktionary, CC BY-SA 3.0