Webster's Revised Unabridged Dictionary · 1913

Ennead

Ennead , noun

[Greek {not transcribed}, {not transcribed}, from 'enne`a nine.]

The number nine or a group of nine.
Collocations (1)
The Enneads , the title given to the works of the philosopher Plotinus, published by his pupil Porphyry; -- so called because each of the six books into which it is divided contains nine chapters.