πατρῴοις (patroois)
πατρῴοις is an Ancient Greek form of πατρῷος, meaning “of one's father, ancestral”. It is the dative plural masculine adjective.
Found 40 times in the Ancient Greek texts on Socratos.
Where it is used
Euripides, Heracleidae 877: καὶ θεοῖς πατρῴοις θύσεθʼ, ὧν ἀπειργμένοι
Claudius Ptolemaeus, Tetrabiblos 4.5·3: … οὺς μὲν ἄρρενας θυγατράσιν ἢ θυγατέρων ἀδελφαῖς ἢ γυναιξὶν υἱῶν, τὰς δὲ θηλείας πατράσιν ἢ πατέρων ἀδελφοῖς ἢ πατρωοῖς.
All forms of πατρῷος (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.