μον-άς · mon-as — LSJ
solitary, ἐρημία E. Ba. 609 (troch.); αἰών Id. Ph. 1520 (lyr.); of a woman, alone, by oneself, Id. Andr. 855 (lyr.): as masc., of a man, A. Pers. 734 (troch.).
as Subst. μονάς, ἡ, unit, Pl. Phd. 101c, 105c, Arist. Metaph. 1089b35, etc.; monad, Procl. Inst. 64, in Alc. p.51 C. (pl.), Dam. Pr. 199, al.: in Pythag. philosophy, to denote fire, Plu. Num. 11.
Ion., = οἴνη, ace on a die, Poll. 7.204.
as a measure of length, = δάκτυλος, Hero *Geom. 4.2; εἰς μονάδας ἀγαγεῖν reduce to units (of weight, here drachmae), Ph. Bel. 51.24; διεξασμένη κατὰ μονάδας, of alum, Dsc. 5.106.