ὀγδοημόριον
From LSJ
ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → as a foreigner, follow the laws of that country | when in Rome, do as the Romans do
English (LSJ)
τό,
A eighth part, Inscr. Délos504A 12 (iii B. C.), Theol.Ar.4, Mnesith. Cyz. ap. Orib.inc.15.12 :—also ὀγδοή-μορον, τό, IG11(2).203 A59,71 (Delos, iii B. C.), PSI6.595.7(iii B. C.).