quintarius
From LSJ
Latin > English (Lewis & Short)
quintārĭus: a, um, adj. id.,
I of or belonging to five, containing five: quintarius numerus, i. e. five sixths, taking the number six as a whole, Vitr. 3, 1: limes, that encloses five centuriae, Hyg. Limit. p. 158 Goes.
Latin > French (Gaffiot 2016)
quīntārĭus, a, um (quintus), de cinq [sur six] : Vitr. Arch. 3, 1, 6 || qui contient cinq centuries [de terre] : Grom. 191, 16.