particle
eco-
B1
Öko- is a German combining form meaning “eco-” used to form compound words (e.g., Ökologie, ökologisch, Ökostrom). It denotes environmental or ecological concerns. It is not a standalone word, cannot be inflected, and commonly appears at the start of nouns and adjectives related to ecology and sustainability.
Examples
Das Präfix öko- bedeutet, dass etwas umweltfreundlich ist, zum Beispiel öko-Label auf Lebensmitteln.
The prefix öko- means something is eco-friendly, for example an eco-label on food.
Der neue Laden führte ein öko-Label ein, damit die Kunden nachhaltige Produkte leichter fanden.
The new shop introduced an eco-label so that customers could find sustainable products more easily.
Details
Mnemonics
Imagine a green label on a product that says "öko-" the same way English products say "eco-".
Sounds like English "eco-" (same prefix meaning related to environment).
Notes
A productive German prefix used to form compounds relating to ecology and environmentally friendly products (equivalent to English "eco-").