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


(sometimes initial capital letter) an avenging spirit or deity frequently evoked in Greek tragedy; a male Nemesis.

Origin of alastor

1600–10; from Greek alástōr “avenging deity,” from álastos “unforgotten, unforgiven” Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for alastor

Word Origin and History for alastor


in Greek tradition, son of Neleus, brother of Nestor, slain by Herakles. The name is perhaps literally "not to forget," from privative prefix a- "not" + root of lathein "to forget" (see Lethe), hence its use figuratively in sense of "an avenging spirit." Or else it might be connected with alaomai "to wander, roam," figuratively "to be distraught."

Online Etymology Dictionary, © 2010 Douglas Harper