Lupus Est Homo Homini

Homer, Iliad 4.471-472 (tr. Peter Green):

                                                                   Like wolves
they sprang one at another, and fighter battered fighter.

                                                               οἳ δὲ λύκοι ὣς
ἀλλήλοις ἐπόρουσαν, ἀνὴρ δ᾽ ἄνδρ᾽ ἐδνοπάλιζεν.

W. Beck on δνοπαλίζω in Lexikon des frühgriechischen Epos:

Heinrich Ebeling on δνοπαλίζω in Lexicon Homericum:

Ebeling's reference to Rumpf is to Heinrich Rumpf, "Ueber die Bedeutung und Ableitung von δνοπαλίζω," Neue Jahrbücher für Philologie und Paedagogik 73 (1856) 268-274. His reference to "Duentz." is to H. Düntzer, "Homerische etymologieen (Fortsetzung)," Zeitschrift für vergleichende Sprachforschung 14.3 (1865) 181-215 (at 210-212).

Francis A. Wood, "Iteratives, Blends, and 'Streckformen'," Modern Philology 9.2 (October, 1911) 157-194 (at 164) accepts the derivation from δονέω plus πάλλω (both meaning shake) and classifies it under the heading "Iterative Compounds of Synonymous Words."