Greek goddess of victory (identified by the Romans with their Victoria), literally "victory, upper hand" (in battle, in contests, in court), probably connected with neikos "quarrel, strife," neikein "to quarrel with," a word of uncertain etymology and perhaps a pre-Greek word. As the name of a type of U.S. defensive surface-to-air missiles, attested from 1952. The brand of athletic shoes and apparel, based near Portland, Oregon, has been so known since 1971, named for the Greek goddess, having been founded in 1964 as Blue Ribbon Sports.

updated on June 14, 2019

Definitions of Nike from WordNet

Nike (n.)
(Greek mythology) winged goddess of victory; identified with Roman Victoria;
Etymologies are not definitions. From, not affiliated with etymonline.