κρατίστοις (kratistois)
κρατίστοις is an Ancient Greek form of κράτιστος, meaning “strongest, best”. It is the dative plural masculine adjective.
Found 35 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 4.12.3: … Ἀθηναίους ἀποβαίνειν· ἐπὶ πολὺ γὰρ ἐποίει τῆς δόξης ἐν τῷ τότε τοῖς μὲν ἠπειρώταις μάλιστα εἶναι καὶ τὰ πεζὰ κρατίστοις, τοῖς δὲ θαλασσίοις τε καὶ ταῖς ναυσὶ πλεῖστον προύχειν.
All forms of κράτιστος (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.