Is DERIG a Wordle Word?

Yes. DERIG is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

What does DERIG mean?

To remove the rigging from (a vessel, etc.).“"No way, we have to derig." "Okay. I'll keep paddling." I started untangling lines, pulling in jibsail cloth like a lobster fisherman pulling up a trap.”

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: AverageIn the top 20% of all valid Wordle words for testing common letters.
Vowels: E, I
Unique letters: 5 of 5
Common letters: E, R, I

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.