κάμνειν
From LSJ
αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)
Greek > English (Woodhouse Verbs Reversed)
(see also κάμνω): faint, flag, labor, labour, be an invalid, be diseased, be distressed, be exhausted, be fatigued, be hard pressed, be hardpressed, be ill, be in distress, be in the throes of, be indisposed, be jaded, be overcome, be poorly, be prostrated, be sick, be spent, be tired, be troubled, be weary, grow faint, labor under, labour under, suffer discomfort, suffer from, be worn out
Lexicon Thucydideum
laborare, to work, toil, 2.41.5, 3.98.1, 6.34.5,
aegrotare, to be ill, 2.51.4, defuncti, be discharged, be completed, 3.59.2 [vulgo commonly κεκμηῶτας, cf. Popp. adn. compare Poppo's note].