Dictionary entry

εἰκῇ

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament with Strong's

εἰκῇ (-ῆ, Rec., as in cl.), adv.,

[in LXX: Pr 28:25 (εἰκῇ)*;]

1. without cause or reason: Mt 5:22 (E, mg.), Col 2:18 (ICC).

2. vainly, fruitlessly, to no purpose: Ro 13:4, I Co 15:2, Ga 3:4 4:11, Col 2:18.†