Origin of tritagonist
1885–90; < Greek tritagōnistḗs, equivalent to trit(ós) third + agōnistḗs actor, competitor, agent derivative of agōnízesthai to contend, struggle, compete for the acting prize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tritagonist
Tritagonist, tri-tag′on-ist, n. the third actor in the Greek drama.