κεφαλαίῳ (kephalaio)
κεφαλαίῳ is an Ancient Greek form of κεφάλαιος, meaning “chief, main; (neut.) main point, sum”. It is the dative singular neuter adjective.
Found 73 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 1.36.3: βραχυτάτῳ δ’ ἂν κεφαλαίῳ, τοῖς τε ξύμπασι καὶ καθ’ ἕκαστον, τῷδ’ ἂν μὴ προέσθαι ἡμᾶς μάθοιτε· τρία μὲν ὄντα λόγου ἄξια τοῖς Ἕλλησι ναυ …
All forms of κεφάλαιος (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.