ἑκατέροις (hekaterois)
ἑκατέροις is an Ancient Greek form of ἑκάτερος, meaning “each of two”. It is the dative plural masculine adjective.
Found 138 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 1.49.1: ξυμμείξαντες δέ, ἐπειδὴ τὰ σημεῖα ἑκατέροις ἤρθη, ἐναυμάχουν, πολλοὺς μὲν ὁπλίτας ἔχοντες ἀμφότεροι ἐπὶ τῶν καταστρωμάτων, πολλοὺς δὲ τοξότας τε καὶ ἀκοντιστάς, τῷ παλαιῷ τρόπῳ ἀπειρότερον ἔτι παρεσκευασμένοι.
All forms of ἑκάτερος (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.