χαλκῆν (chalken)
χαλκῆν is an Ancient Greek form of χαλκοῦς, meaning “of bronze”. It is the accusative singular feminine adjective.
Found 69 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 5.47.11: … ρᾷ ἐν τοῦ Ἀπόλλωνος τῷ ἱερῷ, Μαντινέας δὲ ἐν τοῦ Διὸς τῷ ἱερῷ ἐν τῇ ἀγορᾷ· καταθέντων δὲ καὶ Ὀλυμπίασι στήλην χαλκῆν κοινῇ Ὀλυμπίοις τοῖς νυνί.
Procopius, De Bellis 1.24.47: νεωτερίζειν γὰρ ἐς αὐτὸν τοὺς στρατιώτας οἳ τὴν παλατίου φρουρὰν ἔχουσιν. ἐκέλευεν οὖν αὐτὸν βασιλεὺς ἐπὶ τὴν καλουμένην Χαλκῆν καὶ τὰ ἐνταῦθα προπύλαια ἰέναι.
All forms of χαλκοῦς (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.