thigh

Etymology

From Middle English thigh, thegh, thiȝ, theȝhe, þigh, þyȝh, from Old English þēoh, þīoh, from Proto-West Germanic *þeuh, from Proto-Germanic *þeuhą, from Proto-Indo-European *tewk-. See also West Frisian tsjea, Dutch dij, Middle High German diech, Icelandic þjó, ; also Irish tóin (“hind, rump”), Lithuanian táukas (“fat”), Russian тук (tuk, “animal fat”).

noun

1. The upper leg of a human, between the hip and the knee.
   About ten days ago, in cocking a pistol in the guard-room at Marcau, he accidentally shot himself through the Thigh. 8 November 1800, Jane Austen, a letter
   ‘Why not pay up now, kiddo?’ he suggested magnanimously, patting me on the thigh. 1991, Kathy Lette, The Llama Parlour
   The 23-year-old was substituted in the 75th minute of France's goalless friendly draw with Croatia on Tuesday after suffering an injury to his thigh. 31 March 2011, The Guardian
2. That part of the leg of vertebrates (or sometimes other animals) which corresponds to the human thigh in position or function; the tibia of a horse, the tarsus of a bird; the third leg-section of an insect.
   Add the chicken thighs, close the bag, and squish the marinade to coat the chicken. 2009, Fred Thompson, Grillin' with Gas
   The newly discovered dinosaur Brontomerus mcintoshi may have used its huge muscular thighs to kick predators and rivals. 23 February 2011, Ian Sample, The Guardian