The word "ennea" is a Greek term meaning "nine." It is pronounced with the IPA phonetic transcription /ɛˈneə/ with the stress on the first syllable, "en." The "e" in "ennea" is pronounced like the "e" in "bet" or "set," while the double "n" is pronounced with a slight nasal sound. The final "ea" is pronounced like the "e" in "meat" or "heat." The spelling of "ennea" accurately reflects its pronunciation, which is a common feature of most Greek words.
The word "ennea" is derived from the Greek language. It comes from the Greek term "ennea", which means "nine". It is often used as a prefix or in combination with other words to denote the number nine.