LSJ
Ion. τριποδήϊος, ον, three-footed, ἕδρη Call. Del. 90; poet. fem. τριποδηΐς, ΐδος, Nonn. D. 9.257. τριπόδειον, τό, part of a tripod, different from the πόδες, Inscr.Délos 1449A ab ii 138.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)