Check out How Do You Make an Adverb out of a Separable Verb? by rogersgeorge. Here is an excerpt:
The verb I’m thinking about is “to blend in.” Do we have an adverb for it? Well, here’s the pattern I’ve seen in this situation. Last panel.
https://www.gocomics.com/frazz/2014/02/20 How…
The full article is available here.
