εἰκαστικός

ή, όν, Adv.
A. able to represent: ἡ ‐κὴ τέχνη the art of copying or portraying, Pl. Sph. 235d, etc.
II. able or liable to conjecture, ψευδῶν Ph. 1.160; τὸ εἰ. the faculty of conjecturing, Luc. Alex. 22. Adv. -κῶς conjecturally, Phld. Rh. 2.91 S. (dub.), Procl. in Alc. p.23 C.
2. τὸ εἰ. matter of conjecture, Vett.Val. 312.32.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project