Is DOLOS a Wordle Word?

Yes. DOLOS is a valid Wordle word.

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

Plurals ending in S are almost never chosen as Wordle answers.

What does DOLOS mean?

The bones that are thrown when throwing the bones for divination.
The ankle bones of sheep or goats formerly used by children as playthings.
Interlocking blocks of concrete, used for protection of seawalls and to preserve beaches from erosion, formerly known as Merryfield blocks.“https://web.archive.org/web/20050525044010/http://www.dispatch.co.za/1999/06/28/features/FAME.HTM”

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

Starter word rating: WeakIn the top 78% of all valid Wordle words for testing common letters.
Vowels: O
Unique letters: 4 of 5Repeats O
Common letters: O, L

Hard-mode trap: 10 valid words fit the pattern _OLOS. 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.