οἰκτίστῳ θανάτῳ εἵμαρτο ἁλῶναι → it was fated that you would be taken by the most miserable death, it has been decreed that thou shouldst be cut off by a most piteous death
P. and V. λάθρα, λαθραίως (rare P.), P. κρύφα, Ar. and P. κρύβδην, V. κρυφῆ; (also Xen.), κρυφαίως, κρύβδα.