[1] The headword, a neuter noun (here in the plural), literally -- though rarely in practice -- means collective decisions reached by casting pebbles (psi 85, psi 86) as ballots. The present plural (evidently quoted from somewhere) has the same glossing already in Hesychius.
[2] As Adler notes, Roos hesitantly attributed this quotation to Arrian. In fact it comes, with the addition of tw=| do/gmati, from Menander Protector (fr.18.3 Blockley). See now Favuzzi [cited under alpha 1990] 61.