ις

εως, ιδος, ἡ
A. pumice-stone, Ar. Fr. 320.4, Alex. 124.9, Arist. EN 1111a13, Thphr. Lap. 22, etc. [ι in Comm. ll.cc., AP 6.295 (Phan.): κίσσηρις is erroneous in Thphr.l.c., Asp. in EN 65.4.]
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project