τί ἥδιστον, τὸ ἐπιτυγχάνειν → what's pleasant, to get the goal
subcăvus,¹⁴ a, um, creusé intérieurement, creux : Cato Agr. 151, 3 || souterrain : Lucr. 6, 557.
sub-cavus, a, um, unterwärts hohl, areae, Cato: loca, Lucr. u. Gromat. vet.