Strong's G2940 · Greek

κυβεία

kubeia · koo-bi'-ah

from kubos (a "cube", i.e. die for playing); gambling, i.e. (figuratively) artifice or fraud

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 1 * κυβία (Att. -εία , and so Rec.), -ας, ἡ ( κύβος , a cube , a die ), dice-playing ; metaph., trickery , sleight : Eph 4:14 .† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain