You cannot permanently delete Amazon order history from your account
You can archive an order to hide it from the main order list
Sign in to your Amazon account
Go to Your Orders
Find the order you want to hide
Select Archive order
Confirm the action
To view archived orders, go to Account & Lists
Select Your Account
Open Archived Orders
To remove browsing history, go to Browsing History
Select Remove from view for individual items
Select Manage history to clear or pause browsing history
To hide recommendations based on past purchases, go to Your Recommendations
Select Not interested on items you want to reduce
To protect privacy, consider using a separate Amazon account for future purchases