ἐν πέτροισι πέτρον ἐκτρίβων → by grinding stone against stones
sĕnīlĭtĕr, à la manière des vieillards : Quint. 1, 11, 1.
senīliter, Adv. (senilis), nach Art alter Leute, tremere, Quint. 1, 11, 1.
