What does the prefix and root work mean in word reassuring?

Here's a breakdown of the prefix and root in the word "reassuring":

* Prefix: "re-"

* This prefix means "again" or "back"

* It suggests that the action of "assuring" is being done again or repeated.

* Root: "assure"

* This root means "to make certain" or "to remove doubt."

* It refers to the action of making someone feel confident or secure.

Putting it together: "Reassuring" means to make certain again, or to remove doubt a second time. It implies that someone is being made to feel confident and secure after previously feeling uncertain or anxious.