What does Alexandros mean?
Greek Alexandros, from 'alexo' ('to defend, help') and 'aner/andros' ('man'), i.e. 'defender of men/people'. Borne by Alexander the Great.
What does Nikolaos mean?
Greek Nikolaos (Nicholas), from 'nike' ('victory') and 'laos' ('people'), i.e. 'victory of the people'. Borne by Saint Nicholas.