1: ἀκυρόω
(Strong's #208 — Verb — akuroo — ak-oo-ro'-o )

signifies "to render void, deprive of force and authority" (from a, negative, and kuros, "might, authority;" kurios, "a lord," is from the same root), the opposite to kuroo, "to confirm" (see CONFIRM). It is used of making "void" the Word of God, Matthew 15:6; Mark 7:13 (AV, "making of none effect"), and of the promise of God to Abraham as not being deprived of authority by the Law 430 years after, Galatians 3:17 , "disannul." Kuroo is used in ver. 15. See DISANNUL , VOID.

2: καταργέω
(Strong's #2673 — Verb — katargeo — kat-arg-eh'-o )

"to reduce to inactivity, to render useless," is translated "to make of none effect," in Romans 3:3,31; 4:14; Galatians 3:17 (cp. akuroo, No. 1, in the same verse), and in the AV of Galatians 5:4 , RV, "ye are severed" (from Christ). For the meaning and use of the word see ABOLISH and DESTROY.

3: κενόω
(Strong's #2758 — Verb — kenoo — ken-o'-o )

"to make empty, to empty," is translated "should be made of none effect" in 1—Corinthians 1:17 , AV (RV "made void"); it is used (a) of the Cross of Christ, there; (b) of Christ, in emptying Himself, Philippians 2:7; (c) of faith, Romans 4:14; (d) of the Apostle Paul's glorying in the Gospel ministry, 1—Corinthians 9:15; (e) of his glorying on behalf of the church at Corinth, 2—Corinthians 9:3 . See EMPTY , VAIN , VOID.

Romans 9:6 Acts 27:17NOUGHT.