κούφα σοι χθὼν ἐπάνωθε πέσοι → may earth lie lightly on thee, may the earth rest lightly on you, may the ground be light to you, may the earth be light to you
dēsŭētūdo: ĭnis, f. desuesco,
I discontinuance of a practice or habit, disuse, desuetude: armorum, Liv. 1, 19: bellandi, Fronto, princ. hist. p. 3, 7: desuetudine tardi, Ov. M. 14, 436; so absol., id. Tr. 5, 7, 57; Dig. 1, 3, 32 al.