ὀκτά-μηνος · okta-mēnos — LSJ
eight months old, in the eighth month, Hp. Alim. 42, X. Cyn. 7.6, Arist. HA 545a29, etc. ; of eight months’ duration, IG 11(2).199A 13 (Delos, iii B. C.) ; ὀκτάμηνος as fem., X. l.c., Hp. Epid. 2.3.17 ; (sc. περίοδος) PCair.Zen. 327.77 (iii B. C.) ; but ὀκτάμηναι Arist. HA 583b33.