The rare daily word game sweeping the globe. Find what's hidden in plain sight.
EOSIN
Definition of EOSIN
noun
A red, acidic dye commonly used in histological stains.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from German Eosin, coined by Heinrich Caro, from Ancient Greek ἠώς (ēṓs, “dawn”) + -in.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Ancient Greek
- German
- English
2 recorded generations before English.
Deepest traced root
3rd
of 59 source languages in OUTLIER
12.4%
of traced words share this origin (10,094)
branch · 12.4% of traced words
How it is built
Same root, EOSIN · 3 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.
EOSIN in OUTLIER
Players have found it on 33 boards so far. 39 players have found it across Outlier's history.
It first turned up on Day 51, 10 July 2026. The most recent board was Day 162, 29 October 2026. It was on the latest finished board.
First ever to find it
on Day 51, 10 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
EOSIN starts with E and ends with N. Sorted, its letters read EINOS - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start EOSIN
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 51
Could you have found EOSIN?
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 51 - and most players walked straight past it.
Play today's OUTLIER