tournedos

noun, plural tour·ne·dos [too r-ni-dohz, too r-ni-dohz; French toor-nuh–doh] /ˈtʊər nɪˌdoʊz, ˌtʊər nɪˈdoʊz; French tur nəˈdoʊ/.

1. small slices of fillet of beef, round and thick, served with a variety of sauces and garnished.

noun plural -dos (-ˌdəʊz)

1. a thick round steak of beef cut from the fillet or undercut of sirloin

n.

fillet of steak dish, 1877, from French, from tourner “to turn” (see turn (v.)) + dos “back.” According to French etymologists, “so called because the dish is traditionally not placed on the table but is passed behind the backs of the guests” [OED]. But there are other theories.