Ennead.
The word ennead refers to anything that are in a group of nine. No other numbers will work with this work; only groups of nine.
beginning _____ I don't think so. Antonyms will be the same part of speech. Begin or began would be antonyms for quit, and quitting would be an antonym for beginning.
A nonet is a group of nine.
You seem to be asking about a distorted version of the idiom "on cloud nine" meaning, extremely happy (cloud nine being a cloud in heaven, or something like that).
A example of a word with non- as a prefix meaning nine would be likeNonagon- meaning a shape with 9 sides non-smart-meaning having no knowledge
What is a nine letter word meaning very tidy
kangaroos
The word ennead refers to anything that are in a group of nine. No other numbers will work with this work; only groups of nine.
handefull
viatorial
knapsacks
impedance
chronicle
ninty-nine bananas
difficult demanding
dauntless
therefore