Word Study
a cheval
CIDE DICTIONARY
a cheval, [F., lit., on horseback.].
Astride; with a part on each side; -- used specif. in designating the position of an army with the wings separated by some line of demarcation, as a river or road. [1913 Webster]
"A position à cheval on a river is not one which a general willingly assumes." [Webster 1913 Suppl.]
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