“συμποσίοις τε ἄρδοντες αὑτοὺς ἑτέροις τε ὅσα τούτων ἀδελφά”–
Why is the second part (“ὅσα … ἀδελφά)” in the accusative rather than in the dative?
It’s nominative, not accusative. Lit. “and with others, as many as (are) sibs of these.”
OIC. Thank you, Michael!