bight (n.)
Old English byht "bend, angle, corner," from Proto-Germanic *buhtiz (source also of Middle Low German bucht, German Bucht, Dutch bocht, Danish bught "bight, bay"), from PIE root *bheug- "to bend," with derivatives referring to bent, pliable, or curved objects. Sense of "long, narrow indentation on a coastline" is from late 15c.