προσέληνος
From LSJ
Ἀναβάντα γὰρ εἰς τὴν ἀκρόπολιν, καὶ διὰ τὴν ὑπερβολὴν τῆς λύπης προσκόψαντα τῷ ζῆν, ἑαυτὸν κατακρημνίσαι → For he ascended the acropolis and then, because he was disgusted with life by reason of his excessive grief, cast himself down the height
English (LSJ)
ον, (σελήνη)
A before the moon, older than the moon, a name given to the Arcadians, as priding themselves on their antiquity, Arist.Fr.591, Hippys 2, Plu. 2.282a, Sch.A.R.4.264; expld. by other Gramm.as = ὑβριστικός (cf. προυσελέω), cf. EM690.11: ὁ προυσέληνος,= ὁ Αρκάς, Call.Iamb.1.121. II π. ἡμέραι the days before the new moon appears, Gp.1.6.2.