Last updated: March 2026

Character Name

Efnisien

Meaning — Derived from the Welsh "efnys" meaning "troubled", "restless", or "discord" — the name is essentially programmatic, defining his character in the story. Efnisien is one of the most disturbing figures in Welsh mythology, the troublemaker of the Second Branch of the Mabinogi whose unprovoked mutilation of the Irish king's horses triggers the catastrophic war between Britain and Ireland, though he ultimately redeems himself through self-sacrifice.·Welsh origin·Male·ev-NIS-yen

Efnisien Efnisien is the name of the necessary chaos-bringer — a character whose capacity for destruction is real and terrible, yet whose story does not end in simple villainy. The mythology gives the name to characters who are profoundly difficult to contain within normal social structures, whose internal discord erupts outward with devastating consequences. The redemptive arc makes it suitable for antiheroes who find meaning only in the most extreme self-abnegation.

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Famous characters named Efnisien

Efnisien

The Mabinogion Traditional Welsh Mythology

The chaotic half-brother of Brân whose gratuitous cruelty starts a devastating war and who redeems himself only through the total sacrifice of his own life.


Variations & nicknames

EfnisienEvnissyen

Pairs well with

Efnisien ap EuroswyddEfnisien MorganEfnisien LloydEfnisien LlewellynEfnisien GriffithsEfnisien Tudor

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Bedwyr

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