The rare daily word game sweeping the globe. Find what's hidden in plain sight.
AECIUM
Definition of AECIUM
noun
A cuplike fruiting structure of some parasitic rust fungi that contains chains of aeciospores.
Wiktionary · CC BY-SA
Where it comes from
From New Latin aecium, from Ancient Greek αἰκίᾱ (aikíā, “injury, insult”). However Merriam-Webster relates that aecium is a back-formation from aecidium and is not related to the Greek αἰκίᾱ (aikíā). The word aecium was "introduced as a substitute for aecidium by the Purdue University plant pathologist J. C. Arthur (1850–1942) in an effort to reform terminology for rust fungi; see Terminology of the Spore-Structures in the Uredinales, Botanical Gazette, vol. 39 (Mar., 1905), pp. 219-22."
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Urdu
- Ancient Greek
- Latin
- English
3 recorded generations before English.
Deepest traced root
43rd
of 58 source languages in OUTLIER
0.1%
of traced words share this origin (27)
branch · 1.4% of traced words
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
AECIUM in OUTLIER
Players have found it on 20 boards so far. 16 players have found it across Outlier's history.
It first turned up on Day 29, 18 June 2026. The most recent board was Day 144, 11 October 2026. Nobody has seen it on a board for 4 days.
First found by a player on Day 29, 18 June 2026.
Built from these letters
AECIUM starts with A and ends with M. Sorted, its letters read ACEIMU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Also seen on Day 29
Could you have found AECIUM?
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 29 - and most players walked straight past it.
Play today's OUTLIER