ὀκνεῖν
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
Greek > English (Woodhouse Verbs Reversed)
(see also ὀκνέω): delay, hesitate, revolt, scruple, shrink, waver, be chary of, be diffident of, be disinclined to, be irresolute, be reluctant to, be slow to, fear to, flinch from, hang back, have qualms about, have scruples about, hesitate at, hesitate to, recoil from, shrink from, stick at