{Having swerved} (astoch(8873)antes). First aorist active
participle of astoche(935c), compound _Koin(825f) verb (Polybius,
Plutarch) from astochos (a privative and stochos, a mark),
"having missed the mark." In N.T. only here,  6:21  2Ti 2:18 .
With the ablative case h(936e) (which). {Have turned aside}
(exetrap(8873)an). Second aorist passive indicative of ektrep(935c),
old and common verb, to turn or twist out or aside. In medical
sense in  Heb 12:13 . As metaphor in  1Ti 1:6  6:20  2Ti 4:4 .
{Vain talking} (mataiologian). Late word from mataiologos,
only here in N.T., in the literary _Koin(825f).