stimulator
From LSJ
τά γε μὰν λίνα πάντα λελοίπει ἐκ Μοιρᾶν → but all the thread granted him by the Fates had run out
Latin > English (Lewis & Short)
stĭmŭlātor: ōris, m. id.,
I a pricker-on, instigator, stimulator, Claud. ap. Ruf. 2, 501; Mamert. Grat. Act. ad Iul. 5 (in Cic. Dom. 5, 11, Orell. and B. and K. read instimulator); Vulg. Jer. 46, 20.