quartary
adjEtymology From Latin quārtus (“fourth”) + -ary (adjective-forming suffix) within English in place of the correct form quaternary.
1
Obsolete, Proscribed Synonym of quaternary: Of the fourth rank or order, fourth in a series.
quartary
nounUK /ˈkwɔːtəɹi/ · US /ˈkwɔɹtəɹi/
Etymology From Latin quārtārius (“quarter-sextarius, quarter-pint”), from quārtus (“fourth”) + -ārius (“-ary: forming adj.”). Equivalent to quart + -ary. Doublet of quartarius.
1
Historical, Obsolete, Rare Synonym of quartarius, quarter-sextarius, a Roman unit of liquid measure equivalent to about 0.14 L
2
Historical, Obsolete, Rare A Roman unit of mass, one-fourth of a Roman pound.