Strong’s Greek
G785 — aspis
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀσπίς
aspis — pronounced as-pece'
of uncertain derivation; a buckler (or round shield); used of a serpent (as coiling itself), probably the "asp":--asp.
1 occurrence in the KJV.
Romans 3:13
Their throat is an open sepulchre; with their tongues they have used deceit; the poison of asps is under their lips: