The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ENDOSTEA
Definition of ENDOSTEA
noun
plural of endosteum
noun
A membranous vascular layer of cells which line the medullary cavity of a bone; an internal periosteum.
Wiktionary · CC BY-SA
Word DNA
ENDOSTEA inherits its ancestry from its root, ENDOSTEUM.
Line of descent
- Ancient Greek
- English
One recorded step before English.
Deepest traced root
3rd
of 59 source languages in OUTLIER
12.4%
of traced words share this origin (10,240)
branch · 12.4% of traced words
How it is built
Same root, ENDOSTEUM · 2 relatives in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
ENDOSTEA in OUTLIER
Players have found it on 3 boards so far.
It first turned up on Day 100, 28 August 2026. The most recent board was Day 136, 3 October 2026. Nobody has seen it on a board for 30 days.
First ever to find it
on Day 100, 28 August 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ENDOSTEA starts with E and ends with A. Sorted, its letters read ADEENOST - the shape to hunt for when the grid is scrambled. E appears more than once.
Words that start ENDOST
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found ENDOSTEA?
OUTLIER is a daily word game. One grid, the same grid for everybody, and the words nobody else spots are the ones that pay. This word was on Day 100 - and most players walked straight past it.
Play today's OUTLIER