disuse
From LSJ
μεγάλα ὠφελήσεσθε πρὸς ἱστορίαν τῶν κοινῶν → that will be of great benefit to you in order to understand public affairs
English > Greek (Woodhouse)
substantive
fallen into disuse: use adj., P. and V. ἀρχαῖος, παλαιός.
fall into disuse, disappear, v.: P. and V. ἀφανίζεσθαι.