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by-track
by-track n.
Brit. 
/ˈbʌɪtrak/
, /ˈbʌɪtrak/U.S. /ˈbaɪˌtræk/
/ˈbaɪˌtræk/ΘΚΠ
society > travel > means of travel > route or way > way, path, or track > track, trail, or path > [noun] > side
side path1683
sidetrack1834
by-track1836
1836 M. Scott Cruise of Midge ii. 35 We encountered in another small by-tracke..three others.
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as lemmas