tritagonist

[ trih-tag-uh-nist ]
/ trɪˈtæg ə nɪst /

noun

(in ancient Greece) the third member of an acting troupe, which always consisted of three actors.Compare protagonist(def 4), deuteragonist.

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. 2019

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