Is KYTHE a Wordle Word?

Yes. KYTHE is a valid Wordle word.

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

What does KYTHE mean?

Alternative spelling of kithe: To make known; to reveal.“[…] in a dark night—it kythes bright to the ee, because all is dark around it; but when the morn comes on the mountains, it is but a puir crawling kail-worm after a’.”

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

Starter word rating: WeakIn the top 52% of all valid Wordle words for testing common letters.
Vowels: E
Unique letters: 5 of 5
Common letters: T, E

Hard-mode trap: 7 valid words fit the pattern _YTHE. If you reach it, you may need several guesses to find the last letter.

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.