quaternity
UK /kwəˈtɜːnɪti/ · US /kwɑˈtɜɹnəti/ noun
Forms quaternities
- noun A group or set of four; a foursome, a quartet.
- noun (Christianity, historical) A group of four persons forming the Godhead, in contrast to the Trinity comprising three persons.
- noun (obsolete, rare) Synonym of quarter (“a fourth part”).
- noun (uncountable) Synonym of fourness (“the property or state of being four in number”).
Synonyms
foursome quadruplet quadruplicity quadrad quaternion quartet tetrad tetraplet quarter fourness four 4 IV quatern quaternary Little Joe
Etymology
Learned borrowing from Middle French quaternité (“set of four things; (Christianity) dogma that there are four persons in the Godhead”), from Old French quaternité (modern French quaternité); and from their etymon Late Latin quaternitās (“set of four things; (Christianity) group of four persons in the Godhead”) (modelled after trīnitās (“triad; (Christianity) the Trinity”)) + English -ity (suffix forming abstract nouns). Quaternitās is derived from Latin quaternī + -tās (suffix forming abstract nouns denoting states of being); and quaternī is an inflection of quaternus (“four at a time; fourfold”), from quater (“four times”) (from Proto-Indo-European *kʷetwóres (“four”)) + -nus (suffix forming distributive numerals). By surface analysis, quatern + -ity.
Webster’s 1913
- noun The number four. [Obs.] Sir T. Browne.
- noun The union of four in one, as of four persons; --analogous to the theological term trinity.
Etymology [LL.quaternitas, fr. L. quaterni four each: cf. F. quaternité.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “quaternity”, CC BY-SA 4.0. Details