epocha

plural epochas

1. obsoleteObsolete form of epoch.First known use 17th–19th c.

   [S]tanding publick Records have been kept of theſe vvell atteſted Relations, and Epocha’s made of thoſe unvvonted events.

   1667, J[oseph] G[lanvill], Some Philosophical Considerations Touching the Being of Witches and Witchcraft. […], London: […] E[llen] C[otes] for James Collins […], →OCLC, page 5

   2 more examples

   This Destruction of the Tea is so bold, so daring, so firm, intrepid and inflexible, and it must have so important Consequences, and so lasting, that I cant but consider it as an Epocha in History.

   1773, John Adams, “1773. Decr. 17th”, in Diary of John Adams, Volume 2, pages 85–86

   [T]hese dancers were the very men whose bravery formed the great epocha of French liberty; the heroes who demolished the towers of the Bastille, and whose fame will descend to the latest posterity.

   1790, Helen Maria Williams, Letters Written in France, Broadview, published 2002, page 70