Name the rhetorical device that might also be called an appeal to vanity?

The rhetorical device that might also be called an appeal to vanity is flattery.

Here's why:

* Flattery involves praising or complimenting someone in an excessive or insincere way, often with the aim of manipulating them or gaining their favor.

* Appeal to vanity refers to the use of compliments or praise to exploit a person's desire for admiration or self-importance.

Both terms describe the same tactic, which relies on the recipient's inflated ego to persuade them. While flattery can be genuine, it often serves as a tool for manipulation, appealing to the target's vanity to achieve a desired outcome.