ἄλληκτος

ον, Adv.
A. unceasing, ceaseless, νότος Od. 12.325 ; ὀδύναι S. Tr. 985 (lyr.) ; implacable, θυμός Il. 9.636 : neut. as Adv., ἄλληκτον, ἄλληκτα, Man. 3.252,206.—So Ἀλληκτώ is restored for Ἀληκτώ (the Fury) in Luc. Trag. 6.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project