ταχυπειθής

ές
A. soon persuaded, credulous, Theoc. 2.138, 7.38, Nonn. D. 22.79.
II. obeying quickly or easily, ἀνέμων ῥιπή Tryph. 528.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project