ἑβδόμειος
From LSJ
ἃ γὰρ δεῖ μαθόντας ποιεῖν, ταῦτα ποιοῦντες μανθάνομεν → what we have to learn to do we learn by doing
English (LSJ)
A worshipped on the seventh day, epith. of Apollo, IG2.1653.
German (Pape)
[Seite 699] ὁ, Beiname des Apollo, Inscr. I p. 463; s. ἑβδομαγέτης.