ἀνελεήμων
From LSJ
Έγ', ὦ ταλαίπωρ', αὐτὸς ὧν χρείᾳ πάρει. Τὰ πολλὰ γάρ τοι ῥήματ' ἢ τέρψαντά τι, ἢ δυσχεράναντ', ἢ κατοικτίσαντά πως, παρέσχε φωνὴν τοῖς ἀφωνήτοις τινά –> Wretched brother, tell him what you need. A multitude of words can be pleasurable, burdensome, or they can arouse pity somehow — they give a kind of voice to the voiceless.
English (LSJ)
ον, gen. ονος,
A merciless, without mercy, Arist.Rh. Al.1442a13, Ep.Rom.1.31, Cat.Cod.Astr.2.173:—also ἀνηλεήμων, Nicoch.20; and in AB400 ἀνελήμων. Adv. ἀνελεημόνως, ἀπολέσθαι Antipho 1.25, LXXJb.6.21.