πέτρῃ (petre)
πέτρῃ is an Ancient Greek form of πέτρα, meaning “rock, cliff”. It is the nominative singular feminine noun.
Found 56 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 1.741: ἤιε, δὶς τόσση δὲ μετʼ ἴχνια νίσσετο πέτρη
All forms of πέτρα (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.