οἰνιστήρια
From LSJ
ὁ γὰρ μανθάνων κιθαρίζειν κιθαρίζων μανθάνει κιθαρίζειν → he who is learning the harp, learns the harp by harping
English (LSJ)
(sc. ἱερά), τά, festival at which Athenians cut off the μαλλός, κόννος or σκόλλυς of their sons previous to their being enrolled among the ἔφηβοι, at the same time offering
A a measure of wine (οἴνου μέτρον) to Heracles, and drinking part of it to the health of their φράτερες, Eup.135, Hsch., Phot. (οἰνιαστήρια in Eust.907.18).