ἐγχειρεῖν

From LSJ

ἐν δὲ τοῖς φυσικοῖς ἀεὶ οὕτως, ἂν μή τι ἐμποδίσῃ → in natural products the sequence is invariable, if there is no impediment | now with that which is natural it is always thus if there is no impediment

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ἐγχειρέω): attempt, try, undertake, set about, take in hand

Lexicon Thucydideum

admovere manum operi, incipere, aggredi, to set hand to work, begin, undertake, 1.84.1, 1.128.2, 4.4.2, 4.47.2, 8.24.6, [multi codd. many manuscripts ἐνεχείρισάν]
adoriri, to attack, 4.121.2.