ἀμηχανεῖν
From LSJ
τέχνη δὲ ἄνευ ἀλκῆς οὐδὲν ὠφελεῖ (Thucydides 2.87.4.6) → η τέχνη απαιτεί κουράγιο, skill without heart is useless
Greek > English (Woodhouse Verbs Reversed)
(see also ἀμηχανέω): be at a loss, be at one's wit's end, be bewildered, be distracted, be embarrassed, be helpless, be in a dilemma, be in a predicament, be in difficulties, be in doubt, be in perplexity, be in straits, be in trouble, be irresolute, be perplexed, be puzzled, be troubled, be uncertain, be undecided, not to know
Lexicon Thucydideum
in angustiis esse, to be in difficulties, 7.48.5.