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γιγνώσκειν

Ἓν οἶδα, ὅτι οὐδὲν οἶδα –> I know only one thing, that I know nothing | all I know is that I know nothing.
Diogenes Laertius, Lives of the Philosophers, Book 2 sec. 32.

Greek > English (Woodhouse Verbs Reversed)

γιγνώσκειν = (see also γιγνώσκω): ascertain, consider, decide, determine, discover, judge, know, observe, perceive, recognise, through, be acquainted with, be aware of, be conscious of, grasp with the mind, know how to, make sure, make up one's mind, solve riddle

⇢ Look up "γιγνώσκειν" on Google | Wiktionary | LSJ full text search (Translation based on the reversal of Woodhouse's English to Ancient Greek dictionary)