βασιλείοις (basileiois)
βασιλείοις is an Ancient Greek form of βασίλειος, meaning “royal”.
It can also be a form of βασίλειον, “palace”. It is the dative plural neuter noun.
Found 74 times in the Ancient Greek texts on Socratos.
Where it is used
Euripides, Bacchae 747: ἢ σὲ ξυνάψαι βλέφαρα βασιλείοις κόραις.
All forms of βασίλειος (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.