Θεασάμενος δὲ ἐνταῦθα δράκοντα κατ'αὐτοῦ διαιρόμενον, ἐαυτὸν εἰς τὸν ποταμὸν καθῆκεν: ἐν δὲ τῷ ποταμῷ κροκόδειλος αὐτὸν κατεθοινήσατο.
I don't know from which verbs come καθῆκεν and κατεθοινήσατο from...
I don't know from which verbs come καθῆκεν and κατεθοινήσατο from...