ὀκτώ,
Boeotian dialect ὀκτό [[ “IG” 7.3193.6,9 (3rd c.BC)] Refs 3rd c.BC+], Heraclean hοκτώ [[ “Tab.Heracl.” 1.34] Refs], Elean ὀπτώ [[ “Schwyzer” 419.4 (5th-4th c.BC): οἱ, αἱ, τά] Refs 5th c.BC+]:— indeclinable, eight, [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 2.313, etc.: proverbial πάντα ὀ., in reference to the eight spheres, Timoth. cited in Theo Sm p.105 ] Refs 8th c.BC+] H. (Cf. Sanskrit a[snull][tnull]ā´ a[snull][tnull]áu, Latin octo, Gothic ahtau, etc.)