How do you spell borthed?

"Borthed" is not a standard English word. It's likely a misspelling or a made-up word.

Possible correct spellings:

* Boarded: This means to get onto a boat, train, or plane.

* Bothered: This means to be annoyed or worried.

* Bordered: This means to be surrounded by a border.

If you can provide more context about where you saw "borthed", I might be able to help you figure out the correct spelling.