A — 1: ἐγκόπτω
(Strong's #1465 — Verb — enkopto — eng-kop'-to )

lit., "to cut into" (en, "in," kopto, "to cut"), was used of "impeding" persons by breaking up the road, or by placing an obstacle sharply in the path; hence, metaphorically, of "detaining" a person unnecessarily, Acts 24:4; of "hindrances" in the way of reaching others, Romans 15:22; or returning to them, 1—Thessalonians 2:18; of "hindering" progress in the Christian life, Galatians 5:7 (anakopto in some mss.), where the significance virtually is "who broke up the road along which you were travelling so well?;" of "hindrances" to the prayers of husband and wife, through low standards of marital conduct, 1—Peter 3:7 (ekkopto, "to cut out, repulse," in some mss.).

A — 2: κωλύω
(Strong's #2967 — Verb — koluo — ko-loo'-o )

"to hinder, forbid, restrain," is translated "to hinder" in Luke 11:52; Acts 8:36; Romans 1:13 , RV (AV, "was let"); Hebrews 7:23 , RV (AV, "were not suffered"). See FORBID.

A — 3: διακωλύω
(Strong's #1254 — Verb — diakoluo — dee-ak-o-loo'-o )

a strengthened form of No. 2, "to hinder thoroughly," is used in Matthew 3:14 , of John the Baptist's endeavor to "hinder" Christ from being baptized, AV, "forbad," RV, "would have hindered," lit., "was hindering."

B — 1: ἐγκοπή
(Strong's #1464 — Noun Feminine — enkope — eng-kop-ay' )

"a hindrance," lit., "a cutting in," akin to A, No. 1, with corresponding significance, is used in 1—Corinthians 9:12 , with didomi, "to give," RV, "(that) we may cause (no) hindrance," AV, "(lest) we should hinder."