Having swerved (astochēsantes). First aorist active participle of astocheō, compound Koiné[28928]š verb (Polybius, Plutarch) from astochos (a privative and stochos, a mark), “having missed the mark.” In N.T. only here, 1Ti 6:21; 2Ti 2:18. With the ablative case hōn (which).
Have turned aside (exetrapēsan). Second aorist passive indicative of ektrepō, old and common verb, to turn or twist out or aside. In medical sense in Heb 12:13. As metaphor in 1Ti 1:6; 1Ti 6:20; 2Ti 4:4.
Vain talking (mataiologian). Late word from mataiologos, only here in N.T., in the literary Koiné.