1500-10; <
French <
Latin concertātiōn- (stem of
concertātiō strife, controversy), equivalent to
concertāt(
us) past participle of
concertāre to contend, fight (
con- con- +
certāre to contend, frequentative of
cernere to decide, determine, literally, to sift; cf.
certain) +
-iōn- -ion; though influenced by
French concerter (see
concert) and perhaps a new formation