ἥλιον ἐν λέσχῃ κατεδύσαμεν → we let the sun go down in talk, we let the sun go down in conversation
ὀπίσσωτρον: «ἡ ἁψίς τοῦ τροχοῦ» Ἡσύχ., ἔνθα διορθωτ. ἐπισσωτρον.