ἀκάρπωτος
From LSJ
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)
ον,
A not made fruitful, uncultivated, Thphr.CP3.13.3. 2 metaph., χρησμὸς ἀ. unfulfilled oracle, A.Eu.714; νίκας ἀκάρπωτον χάριν because of some victory which yielded her no tribute, S.Aj.176.