The Homeric Greek word ἑταῖρος
Word ἑταῖρος
he t a î r o ς
IPA etajros
Meaning comrade, companion
See also Ancient Macedonian: ἑταῖροι ‘the cavalry of the Macedonian kings’
Synonyms ὀπάων

Comments
Iliad

Other words that might be of interest
ἀδελφός ‘brother, son of the same mother’, δεκάς ‘company of ten’, ἔθνος ‘number of people living together, company, body of men’, φιλόφρων ‘kindly disposed, friendly’, φιλότης ‘friendship, love, affection’, φιλοφροσύνη ‘friendliness, kindliness’, κασίγνητος ‘brother’, φίλιος ‘friendly’, φιλία ‘affectionate regard, friendship’