Earth-friendly prefix WSJ Crossword Clue

By Date: JAN 12, 2026 Follow on Google

Crossword Answer

Click ? to reveal letters one by one before showing the full answer.

hint

Need a Hint? Try Solving It Yourself First

Use our Hints & Tips to uncover the answer.

Hint 1

hint

Hint 2

meaning

Hint 3

explanation
questions

Frequently Asked Questions About This Clue

The most common and recent 3-letter answer for "Earth-friendly prefix" is ECO.
The clue 'Earth-friendly prefix' refers to a common prefix used in words related to environmental friendliness, such as 'ecology' or 'eco-friendly.' 'ECO' is a prefix that denotes an ecological or environmental aspect.
This clue was last seen in the WSJ Crossword on January 12, 2026.
ECO is a prefix denoting ecological or environmental concern.
Green, Prefix with label, “Il Nome Della Rosa” writer, "Foucault's Pendulum" author, ___-friendly (environmentally conscious)

The clue “Earth-friendly prefix” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated January 12 2026, the definitive 3-letter answer is: ECO.

Expert Tip: When you’re stuck, try to analyze the structure of the clue itself. Is it a direct definition, a pun, a fill-in-the-blank, or a pop culture reference? Identifying the type of clue you’re dealing with is a key skill for improving your solving speed.

Finished the WSJ Puzzle? Check out this link for future puzzles:

Play the Official Game