How to disable auto-completion in Safari search bar?

iOS26

Search Engine Suggestions - OFF

Safari Suggestions - OFF

Preload Top Hit - OFF

Advanced Website Data - entire content cleared

Yet in spite of the above, I am still getting all my entries into the search bar of Safari auto completed as soon as I type in the first letter or two of my search. It's driving me around the bend! How can I put a stop to this auto-completion?

[Re-Titled by Moderator]