trieteric

trieteric

(ˌtraɪɪˈtɛrɪk)
adj
archaic occurring once every three years

trieteric

1. a festival that occurs every third year, especially one honoring Bacchus.
2. occurring every third year, particularly in reference to festivals for divinities. — trieterical, adj.
See also: God and Gods
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References in periodicals archive ?
(76) The two appear to have had some relationship with each other since it is known that the same agonothetes presided over both festivals, and the Isthmian Games (trieteric) preceded the Caesarea (pentaeteric).