My sister and her now ex-husband ordered engraved knives for themselves when they go married. Benchmade got the engraving wrong, so when they received them incorrectly engraved, benchmade told them to keep the bad ones, and they shipped them another set that were correctly engraved.

Anyway, she gave all four of them to me yesterday. How do I remove this engraving if I can?

I bet some 40-grit sandpaper would do it.  Or a lot of elbow grease, oil, and 0000 steel wool.

I guess I should have thought out the question.

Is it possible to sand/polish it away without fucking it up?

Engraving seems deep.

At worst I have 4 beater Benchmade knives.

Use the crap out of it and it will wear off.

Grinder?  Dremel?

Cerakote or spray paint over it?

Leave it and have a laughable story to tell every time someone asks you about it?

Find another engraver who will engrave over it as a solid block?

You could contact Benchmade and see if they will put a new blade on for a small fee. Seems like something they might be willing to do.

Aren't they serial numbered? I'm to poor to own one.

Since laser etching or "engraving" cuts INTO the metal, it's like pitting...... they only way to "remove it" is to remove metal.
Unless you have some polishing skills you'll likely make it look like crap.

The best way to try it is to use wet or dry sand cloth with a small sanding block made from a large eraser or a wood block.
Once the sand cloth had abraded the engraving off, use finer and finer grits to restore the finish.

My advice is the same as above.... contact Benchmark and ask them what they can do about a blade switch, or, just bite the bullet and live with it.  
Better an odd ball engraving on a blade then a botched, crappy looking blade that looks like Billy Bob used a grinder on it.

Very easy to remove (I've done it).

Sand blast cabinet, aluminum oxide media.

5 minutes; gone.

Then you need to polish the blade if you want a mirror finish.

G.

What model are they? What's engraved on them? I might buy one off you if the price is right

Re etch over it

https://m.wikihow.com/Acid-Etch-Steel

This, ferric chloride and apple cider 50/50 mix