enneads

Noun

ennead (plural enneads)

1. (obsolete) The number nine.
   • The ennead, according to the Pythagoreans, circulates all numbers within itself, and there can be no number beyond it. For the natural progression of numbers is as far as to 9, but after it their retrogression takes place. For 10 becomes as it were again the monad. […] Hence it is not possible...1816, Proclus, chapter XXXI, in Thomas Taylor, transl., The Six Books of Proclus the Platonic Successor, on the Theology of Plato, Translated from the Greek; […] Two Volumes, volume II, London...
2. (rare) Any grouping or system containing nine objects.
   • We may assert with confidence that no cycle of this kind, and of equal antiquity or even of inferior antiquity, is the actual existence better attested or more thoroughly authenticated than that of this octaëteris of Philammon of Delphi, or, as we may truly call it, this original Pythian ennead of...1852, Edward Greswell, “On the Lunar in Contradistinction to the Solar Modifications of the Primitive Calendar”, in Fasti Temporis Catholici and Origines Kalendariæ. … In Four Volumes, volume I...

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