πελταστής

οῦ, ὁ

πέλτη

A. one who bears a light shield (πέλτη), targeteer, E. Rh. 311, Th. 2.29, Lys. 19.21, X. Cyr. 2.1.5.
II. in pl., generally, light troops, Id. HG 4.4.16, IG 12.97.17,99.5, etc.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project