ἡσσᾶσθαι

From LSJ

τὴν οἴησιν ἔλεγε προκοπῆς ἐγκοπήν → he used to say, Opinion forming is the stoppage of progress

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ἡσσάομαι): be broken in spirit, be conquered, be defeated, be discomfited, be inferior to, be inferior, be overcome, be vanquished, be worsted, fall short of, get the worst of it, give way, have the worst of it, in battle, lose a battle, suffer a reverse, yield to feelings

Lexicon Thucydideum

vinci, superari, to be conquered, overcome,
acie, battle line 1.30.2, 1.49.6, 1.50.1, 1.62.6, 1.63.1. 2.39.3, 2.79.5, [vulgo commonly ἥσσηντο]. 2.87.3, [nonn. codd. several manuscripts ἡσσᾶσθαι, alii others ἡσσηθῆναι] 2.89.4, 2.89.11, 4.73.3. 4.96.3, 4.96.4. 5.72.4. 5.73.1, 5.73.3. 6.69.3. 6.72.3, 6.91.2, 7.25.9, 7.34.7. 7.34.77.40.2, 7.71.3, 8.25.4. 8.27.3. 8.57.1.
iudicio, trial 3.57.3,
Transl. translate 3.38.7, 4.37.1, 5.111.3, 8.66.3,
cedere, to withdraw, give way, 4.64.1, 4.64.3, 5.111.4.