ἐννεάς
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
άδος, ἡ,
A body of nine, Theoc.17.84 (pl.), AP7.17 (Tull. Laur.); ἡ ὑμνουμένη ἐ. ἐν τῷ νοητῷ Dam.Pr.117: Porph. divided the works of his master Plotinus into six enneads, Plot.24. II the number nine, Plu.2.726d,744a, Nicom.Ar.1.19, etc. III the ninth day of the month, v. εἰνάς.