mass noun
1- the sport or activity of riding horses骑马运动; 骑马。
1.1
- count noun a path for horse riding, typically one through woods（尤指林间的）马道。
1
- （一般作the East/North/West Riding）one of three former administrative divisions of Yorkshire英格兰约克郡原三个行政区之一。
2
- an electoral district of Canada（加拿大的）选区。
词源
Old English trithing, from Old Norse thrithjungr 'third part', from thrithi 'third'. The initial th- was lost due to assimilation with the preceding -t of East, West, or with the -th of North.