Im not sure for the prefix of intentionally is it in or is there no prefix?

There is no prefix. "In-" is part of the root word, "intent."

Thank you

No because intention is the base word. So there is no prefix.

You're welcome.

The prefix for the word "intentionally" is "in-". To confirm this, we can break down the word and determine its origin. "Intentionally" is derived from the word "intention," meaning a purpose or plan. The prefix "in-" means "not" or "lacking." So, combining the prefix "in-" with the root word "intention" forms the adverb "intentionally," which means "not lacking intention" or "with purpose."