νοεῖν
From LSJ
εἰς πέλαγος σπέρµα βαλεῖν καὶ γράµµατα γράψαι ἀµφότερος µόχθος τε κενὸς καὶ πρᾶξις ἄκαρπος → throwing seeds and writing letters at sea are both a vain and fruitless endeavor
Greek > English (Woodhouse Verbs Reversed)
(see also νοέω): determine, intend, mark, mean, note, notice, observe, perceive, plan, ponder, reflect, resolve, signify, understand, be minded to, brood on, conceive in the mind, contemplate mentally, cudgel one's brains, form a notion of, form an idea of, grasp in the mind, grasp with the mind, have a mind to, have in view, meditate on, picture to oneself, ponder on, rack one's brains, reflect on, reflect upon, take into consideration, think of, wrack one's brains