rare. [a. Gr. ἀλάστωρ the avenging deity, f. ἀ priv. + λαστ, f. λαθεῖν to forget.] A relentless or avenging spirit, a Nemesis.
1810. W. Taylor, Monthly Mag., XXIX. 350/1. He [Thomas Heywood] is willing … to believe in devils, imps, alastors, and every other class of cacodemons.
| Ibid. (1812), XXXIV. 234/2. | |
| The midnight mass will soon be read, | |
| Which even the alastors dread. |
