What part of speech is etched?

"Etched" can be a few different parts of speech, depending on its use in a sentence:

* Verb: This is the most common use, meaning to carve or engrave something. For example: "The inscription was etched into the stone."

* Adjective: It can also be used to describe something that is engraved or marked deeply, like "etched lines" or "an etched glass."

* Past participle: In some cases, it can act as the past participle of the verb "etch," used in a passive construction. For example: "The image was etched in his memory."

So, the part of speech depends on the context in which it's used!