[ pə'rɛm(p)t(ə)ri , 'pɛrɪm- ]
■ adjective
1》 insisting on immediate attention or obedience; brusque and imperious.
2》 Law not open to appeal or challenge; final.
Derivatives
peremptorily adverb
peremptoriness noun
Origin
ME: via Anglo-Norman Fr. from L. peremptorius 'deadly, decisive', from perempt- , perimere 'destroy, cut off'.