authoritative
From LSJ
Τα βιβλία τα παρά των ξένων επαίδευε τους εν τη αγορά ανθρώπους, τους Ομήρου φίλους → The others' books educated the people in the marketplace, the friends of Homer.
English > Greek (Woodhouse)
adjective
positive, certain: P. and V. βέβαιος, πιστός.
peremptory (of persons): P. δεσποτικός.
of a command: P. ἰσχυρός; see peremptory.
possessed of authority: P. and V. κύριος.