De natura δεκάτης (or -ας)

In this note I discuss a dedicatory formula known only, I believe, from the sanctuary of Athena at Ialysos, whose rich material has been usefully outlined by Marina Martelli (2003). My observations are based on what is said in that publication and the objects on display in the Archaeological Museum.¹ The formula in question is μναμόσυνον δεκάτας, which appears in at least four graffiti on pots (two cups, an amphora and a krater), mostly Attic, of the late 6th or 5th century BC, a bronze instrument and on the rim of one marble louterion; whatever closer figures and dating may