|Noah Webster's Dictionary|
1. (n.) Wide and general destruction; devastation; waste.
2. (v. t.) To devastate; to destroy; to lay waste.
3. (n.) A cry in war as the signal for indiscriminate slaughter.
Int. Standard Bible Encyclopedia
hav'-ok: "Devastation," "to make havoc of" is the translation of lumainomai, "to stain," "to disgrace"; in the New Testament "to injure," "destroy" (Acts 8:3, "As for Saul he made havoc of the church," the Revised Version (British and American) "laid waste"; APC 1Macc 7:7, "what havoc," the Revised Version (British and American) "all the havock," exolothreusis, "utter destruction").
The Revised Version has "made havoc of" (portheo) for "destroyed" (Acts 9:21 Galatians 1:23), for "wasted" (Galatians 1:13).
Havoc (7 Occurrences)
Acts 8:3 As for Saul, he made havock of the church, entering into every house, and haling men and women committed them to prison. (Root in KJV WBS YLT)
Acts 9:21 All who heard him were amazed, and said, "Isn't this he who in Jerusalem made havoc of those who called on this name? And he had come here intending to bring them bound before the chief priests!" (WEB ASV RSV NIV)
Galatians 1:13 For you have heard of my early career in Judaism--how I furiously persecuted the Church of God, and made havoc of it; (WEY ASV)
Galatians 1:23 They only heard it said, "He who was once our persecutor is now telling the Good News of the faith of which he formerly made havoc." (WEY ASV)
Psalms 74:8 They said in their heart, Let us make havoc of them altogether: They have burned up all the synagogues of God in the land. (ASV JPS)
Isaiah 54:16 Behold, I have created the smith that bloweth the fire of coals, and bringeth forth a weapon for his work; and I have created the waster to destroy. (See NIV)
Jeremiah 48:3 The sound of a cry from Horonaim, desolation and great destruction! (See NIV)