ἀσθενεῖ (asthenei)
ἀσθενεῖ is an Ancient Greek form of ἀσθενής, meaning “weak”. It is the dative singular neuter adjective.
Found 35 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 2.25.1: … ν ἐκεῖ ξυμμάχων ἄλλα τε ἐκάκουν περιπλέοντες καὶ ἐς Μεθώνην τῆς Λακωνικῆς ἀποβάντες τῷ τείχει προσέβαλον ὄντι ἀσθενεῖ καὶ ἀνθρώπων οὐκ ἐνόντων.
All forms of ἀσθενής (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.