τυμπανισμός
From LSJ
αἰὼν παῖς ἐστι παίζων, πεσσεύων∙ παιδός η βασιληίη → time is a child playing draughts; the kingship is a child's | a life-time is a child playing, playing checkers: the kingship belongs to a child | a whole human life-time is nothing but a child playing, playing checkers: the kingship belongs to a child | lifetime is a child at play, moving pieces in a game; kingship belongs to the child
English (LSJ)
ὁ,
A beating of drums, drumming, as the Galli did in the worship of Cybele, Ar.Lys.388; in the Dionysus-cult, Str.15.1.8; as a superstitious practice, in pl., Plu.2.171b,338c.