On the jar, on the turn, ajar, as a door.
Jar (jär), n. [F. jarre, Sp. jarra, from Ar. jarrah ewer; cf. Pers.
jarrah.] 1. A deep, broad-mouthed vessel of earthenware or glass, for
holding fruit, preserves, etc., or for ornamental purposes; as, a jar
of honey; a rose jar. Dryden.
2. The measure of what is contained in a jar; as, a jar of oil; a jar
of preserves.
Bell jar, Leyden jar. See in the Vocabulary.
Jar, v. i. [imp. & p. p. Jarred (?); p. pr. & vb. n. Jarring (?).] [Cf.
OE. charken to creak, AS. cearcian to gnash, F. jars a gander, L.
garrire to chatter, prate, OHG. kerran to chatter, croak, G. quarren to
grumble, and E. jargon, ajar.]
1. To give forth a rudely quivering or tremulous sound; to sound
harshly or discordantly; as, the notes jarred on my ears.
When such strings jar, what hope of harmony ?
Shak.
A string may jar in the best master's hand.
Roscommon.
2. To act in opposition or disagreement; to clash; to interfere; to
quarrel; to dispute.
When those renowned noble peers Greece Through stubborn pride among
themselves did jar.
Spenser.
For orders and degrees Jar not with liberty, but well consist.
Milton.
Jar, v. t. 1. To cause a short, tremulous motion of, to cause to
tremble, as by a sudden shock or blow; to shake; to shock; as, to jar
the earth; to jar one's faith.