aspis

As a noun aspis

is a type of round shield borne by ancient greek soldiers.

As an adjective aspish is

pertaining to, or like, an asp.

As nouns the difference between aspis and asps

is that aspis is a type of round shield borne by ancient greek soldiers while asps is .

As nouns the difference between aspis and hypaspist

is that aspis is a type of round shield borne by ancient Greek soldiers while hypaspist is a lightly-armoured military unit in Ancient Greece, who often served the purpose of distracting the foe from the frontline while holding an aspis and a spear, allowing the more mobile cavalry to strike the enemy from the flanks.