alastor

American  

[uh-las-ter, ‑tawr] / əˈlæs tər, ‑tɔr /

Or Alastor

noun

1. an avenging spirit or deity frequently evoked in Greek tragedy; a male Nemesis.

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Etymology

Origin of alastor

First recorded in 1600–10; from Greek alástōr “avenging deity,” from álastos “unforgotten, unforgiven”