τρίπολος

ον
A. thrice turned up, thrice ploughed, νειός Il. 18.542, Od. 5.127, Hes. Th. 971; ἴκελον τὸ ξύμπαν τριπόλῳ νειῷ(τοιποδονίῳ codd.), of an elephant's skin, Aret. SD 2.13.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project