Letter XXXIX: ad familiares 16.4
Leucas, Nov. 7, 50 B.C.
Cicero apparently left Tarsus July 30 (cf. Fam. 2.17.1), and, after a delay of several weeks in Rhodes and Ephesus, reached the Piraeus Oct. 14. Toward the end of the month he set out by land for Rome. Tiro, who was with him, was taken ill on the way, and was left behind at Patrae, while Cicero continued his journey through Alyzia and Leucas.
existimari: probably impersonal, although after de introducing a transition we find such loose constructions that it would be possible to consider existimari personal with an omitted eum for its subject. Cf. de Quinto fratre, scito eum non mediocriter laborare, etc., Att. 10.15.4.
κακοστόμαχος: as the physicians were usually Greeks, technical medical expressions were in Greek. Cf. the prescription which Cicero urges upon Tiro: ea (i.e. valetudo) quid postulet, non ignoras; πέψιν, ἀκοπίαν, περίπατον, σύμμετρον, τρῖψιν, εὐλυσίαν κοιλίας Fam. 16.18.1.
Lysonem: Tiro was staying at Lyso's house.