The rare daily word game sweeping the globe. Find what's hidden in plain sight.
KERATIN
Definition of KERATIN
noun
The protein of which hair and nails are composed.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from German Keratin, from Ancient Greek κέρας (kéras, “horn”) + -in. Doublet of carat.
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
12.2%
of traced words share this origin (9,700)
branch · 12.2% of traced words
How it is built
Same root, KERATIN · 9 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.
KERATIN in OUTLIER
Players have found it on 61 boards so far. 136 players have found it across Outlier's history.
It first turned up on Day 26, 15 June 2026. The most recent board was Day 160, 27 October 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 26, 15 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
KERATIN starts with K and ends with N. Sorted, its letters read AEIKNRT - 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 KERATI
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 26
Could you have found KERATIN?
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 26 - and most players walked straight past it.
Play today's OUTLIER