Phoebeus
Frieze-Dennison Vergil
Phoebēus, a, um: adj. (Phoebus), pertaining to Phoebus or the sun; Phoebean, 3.637.
Could not find Phoebeas in Logeion dictionaries.
Phoebeas Proper-name adjective: feminine accusative plural of Phoebeus
Phoebēus, a, um, v. Phoebus, B.