Quaternity
/kwəˈtɜː(ɹ)nɪti/ noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A group or set of four. countable
- 2 the cardinal number that is the sum of three and one wordnet
- 3 The state of being four. uncountable
Etymology
From quatern + -ity, from Latin quaternitās, from quaternus (“fourfold, in fours”).