一切經音義 33.165

33.165

驂駕（悤含反說文駕三馬也居右而驂乘備非常也驂旁馬曰騑騑音妃也）。

驂駕 [Hitching an extra horse to the carriage]: Fanqie 悤 (cong) + 含 (han) [MC: *tsʰɑm]. The Shuowen jiezi states: 'Driving three horses. Riding on the right as a chariot companion to guard against the unexpected.' The horse harnessed at the side of a three-horse carriage is called a 騑 (fei); 騑 has the sound 妃 (fei).