ἀδιαφορέω
πενία μόνα τὰς τέχνας ἐγείρει → poverty alone promotes skilled work, necessity is the mother of invention, necessity is the mother of all invention, poverty is the mother of invention, out of necessity comes invention, out of necessity came invention, frugality is the mother of invention
English (LSJ)
A to be indifferent, κατά τι S.E.P.1.191; πρός τι M.Ant.11.16; ἀδιαφορεῖ impers., ἐάν . . ἐάν . . Ph.2.243: c. inf., A.D.Pron.45.22. 2 Gramm., not to agree, in case, gender, etc., ib.68.15,al. II ἀ. τινός not to differ from, Ph.1.414. III personal, bring about no change, Gal.1.194. IV Math., to be negligible, Procl.Hyp. 3.31; ἀ. πρὸς ἄσθησιν not to differ appreciably, ib.3.15. V of persons, to be neglected, uncared for, PLond.2.144 (i A.D.).