Stygiis

Stygiis is a Latin form of Stygius, meaning “Stygian, of the Styx; of the underworld”. It is the ablative plural neuter adjective or ablative plural feminine adjective or ablative plural masculine adjective or dative plural neuter adjective.

Found 28 times in the Latin texts on Socratos.

Where it is used

Vergil, Georgics 3.551: Saevit et in lucem Stygiis emissa tenebris

All forms of Stygius (declension table)

Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.