παρέκ-βᾰσις · parek-basis — LSJ
going aside from: metaph., deviation from, τοῦ δικαίου Arist. Pol. 1307a7.
esp. of the deviations of constitutional forms, as τυραννίς is a π. of monarchy, oligarchy of aristocracy, democracy of ἡ πολιτεία, Id. EN 1160a31, cf. Pol. 1279a20, 1283a29, al.
digression, Is. 6.59 (pl.), Plb. 1.15.13, al., Apollon. Cit. 3; τὴν π. ποιήσασθαι, ποιεῖσθαι τὰς π., D.H. 1.53, D.S. 1.37, cf. Phld. Rh. 1.157S.; κατὰ παρέκβασιν Plb. 3.2.7, 31.30.4, S.E. P. 3.101.