quinary
1 of 2adjective
quina·ry
ˈkwīnərē,
-win-
1
: consisting of five : arranged by fives : quintuple
the quinary system is based on counting the fingers of one hand
H. J. Spinden
H. J. Spinden2
: of the fifth order or rank
quinary
2 of 2noun
"
plural -es
: a quinary group or system
Word History
Etymology
Adjective
Latin quinarius, from quini five apiece + -arius -ary; akin to quinque five