hemistichium

τά γε μὰν λίνα πάντα λελοίπει ἐκ Μοιρᾶν → but all the thread granted him by the Fates had run out

Latin > English (Lewis & Short)

hēmistĭchĭum: ĭi, n., = ἡμιστίχιον,
I a half-verse, hemistich: Enniano hemistichio usus est, Pseudo Ascon. Cic. Verr. 2, 1, 18.