ἀναπίπτειν
From LSJ
ἄνθρωπος ὢν ἥμαρτον· οὐ θαυμαστέον → being human I made a mistake; there is nothing remarkable about it
Greek > English (Woodhouse Verbs Reversed)
(see also ἀναπίπτω): fall back
Lexicon Thucydideum
coneidere, animo frangi, to fall down, lose heart, 1.70.5, (secundum alios according to others recedunt, they recede, withdraw).