The Collaborative International Dictionary
Countersway
Countersway \Coun"ter*sway`\ (-sw[=a]`), n. A swaying in a contrary direction; an opposing influence.
A countersway of restraint, curbing their wild
exorbitance.
--Milton.
Wiktionary
countersway
n. (context obsolete English) A swaying in a contrary direction; an opposing influence.