οὐδάμινος
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)
η, ον (proparox., cf. Hdn. Gr. 2.26), A worthless, good for nothing, J.AJ17.2.4, 18.7.1, Heph.Astr.3.2, Anon. in Rh.186.16, Hsch.
