~ 1
■ noun
1》 the sport or activity of ~ horses.
2》 a path for horse ~.
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~ 2
■ noun
1》 (usu. the East/North/West Riding ) each of three former administrative divisions of Yorkshire.
2》 an electoral district of Canada.
Origin
OE trithing , from ON thrithjungr 'third part', from thrithi 'third'; the initial th- was lost due to assimilation with the preceding -t of East , West , or the -th of North .