Psiloi
Psiloi (psiletai, in ancient Greek), the light infantry who, lacking defensive weapons (shield, armour), fought as “stone-throwers” (lithovoloi and petrovoloi), slingers (sfendonitai), javelinmen (akontistai), or archers (toxotai), in contrast to the hoplitai (hoplites). Their commanders were known as psilagoi.
Source: Pierer’s Universal-Lexikon 4. Auflage 1857–1865
Psiloi, unarmoured light infantry of the Greeks, who were primarily employed for ranged combat; cf. gymnetes.
Source: Meyers Großes Konversations-Lexikon, 6. Auflage 1905–1909