ἱερῷ (hiero)
ἱερῷ is an Ancient Greek form of ἱερός, meaning “holy, sacred”.
It can also be a form of ἱερόν, “temple, sanctuary; sacrifice”. It is the dative singular neuter noun.
Found 307 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 2.699: εὐαγέως ἱερῷ ἀνὰ διπλόα μηρία βωμῷ
Plutarch, Timoleon 36.6: ἐπὶ δὲ τῆς οἰκίας ἱερὸν ἱδρυσάμενος Αὐτοματίας ἔθυεν, αὐτὴν δὲ τὴν οἰκίαν Ἱερῷ δαίμονι καθιέρωσεν.
All forms of ἱερός (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.