Definify.com
Webster 1913 Edition
Quaternity
Qua-ter′ni-ty
,Noun.
[LL.
quaternitas
, fr. L. quaterni
four each: cf. F. quaternité
.] 1.
The number four.
[Obs.]
Sir T. Browne.
2.
The union of four in one, as of four persons; – analogous to the theological term trinity.
Webster 1828 Edition
Quaternity
QUATERN'ITY
,Noun.