quadrus
From LSJ
Latin > English (Lewis & Short)
quā̆drus: a, um, adj. for quatrus, from quattuor,
I square (post-class.): quadrus terminus, Auct. Limit. p. 281 Goes.: cella, Pall. 1, 40: lapides, Vulg. Isa. 9, 10.
Latin > French (Gaffiot 2016)
quădrus, a, um (quattuor), carré : Pall. 1, 38, 3 ; quadrus lapis Vulg. Is. 9, 10, pierre de taille.