Orchus
Could not find Orcho in Logeion dictionaries.
Orcho Proper-name noun: masculine ablative singular, Proper-name noun: masculine dative singular of Orchus
Orchus, i, m., = Orcus: Orchi traditus thesauro, Naev. ap. Gell. 1, 24, 2.
Orchus, s. Orcus.
Orchus, ī, m. , c. Orcus : Næv d. Gell. 1, 24, 2.