1: κολάζω
(Strong's #2849 — Verb — kolazo — kol-ad'-zo )

primarily denotes "to curtail, prune, dock" (from kolos, "docked"); then, "to check, restrain, punish;" it is used in the Middle Voice in Acts 4:21; Passive Voice in 2—Peter 2:9 , AV, "to be punished" (RV, "under punishment," lit., "being punished"), a futurative present tense.

2: τιμωρέω
(Strong's #5097 — Verb — timoreo — tim-o-reh'-o )

primarily, "to help," then, "to avenge" (from time, "value, honor," and ouros, "a guardian"), i.e., "to help" by redressing injuries, is used in the Active Voice in Acts 26:11 , RV, "punishing" (AV, "I punished"); Passive Voice in Acts 22:5 , lit., "(that) they may be punished." Cp. No. 5, below.

2—Thessalonians 1:9JUSTICE. SUFFER