ὀκταετηρίς
From LSJ
ἡ πρὸς τοὺς ἄρρενας συνουσία → passionate friendship between males
English (LSJ)
ίδος, ἡ,
A cycle of eight years, used at Athens before Meton's time for bringing the lunar and solar years together, 3 months being intercalated to complete the sum of 2,922 days, Eudox.Ars 13.12, Str.7.5.5, Gem.8.27 sqq., Placit. 2.32.2.
German (Pape)
[Seite 317] ίδος, ἡ, Zeitraum von acht Jahren, Plut. plac. phil. 2, 32.