[sir.loin] n [alter. of earlier surloin, modif. of MF surlonge, fr. sur over (fr. L super) + loigne, longe loin--more at over, loin] (1554): a cut of meat and esp. of beef from the part of the hindquarter just in front of the round--see beef illustration
SIRLOIN
Meaning of SIRLOIN in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012