ἱλαρῳδός
From LSJ
ἄνω ποταμῶν ἱερῶν χωροῦσι παγαί → the springs of sacred rivers flow upward, backward to their sources flow the streams of holy rivers
English (LSJ)
[ῐ], ὁ, (ᾠδή)
A singer of joyous (not 'comic') songs, Aristocl.Hist.8:—hence ἱλᾰρ-ῳδέω, Id.7; ἱλᾰρ-ωδία, Aristox.Fr.Hist.58, cf. Ath.14.621c.
German (Pape)
[Seite 1250] ὁ, Dichter u. Sänger lustiger Lieder, Ath. XV, 697 d, vgl. XIV, 621 c.