quaternity

English

Etymology

quatern +‎ -ity, from Latin quaternitās, from quaternus (“fourfold, in fours”).

Pronunciation

IPA^(key): /kwəˈtɜː(ɹ)nɪti/
Audio (Southern England) (file)

Noun

quaternity (countable and uncountable, plural quaternities)

(countable) A group or set of four.
(uncountable) The state of being four.

Synonyms

(a group of four): quartet, tetrad; see also Thesaurus:quartet
(state of being four): fourness; see also Thesaurus:fourness

Related terms

quaternary
unity (oneness)
duality (twoness)
trinity (threeness)
quinity (fiveness)

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