-onium
French, suffix/ɔ.njɔm/
-onium is spelled O-N-I-U-M (5 letters). -onium is a French suffix meaning “-onium” (English Wiktionary, September 2026).
What does -onium mean in English?
suffix
- 1
-onium
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How do you pronounce -onium?
- /ɔ.njɔm/
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.