jar (n.) 1
conflict, quarrel, dissension
1H6 I.i.44 [Bedford to Gloucester and Winchester] cease these jars, and rest your minds in peace [also: sense 2]
CE I.i.11 [Duke to Egeon] the mortal and intestine jars / 'Twixt thy seditious countrymen and us
Ven 100 [Venus to Adonis, of Mars] Who conquers where he comes in every jar