diagonalis
From LSJ
ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → for extreme diseases, extreme methods of cure, as to restriction, are most suitable (Corpus Hippocraticum, Aphorisms 1.6.2)
Latin > English (Lewis & Short)
dĭăgōnālis: e, adj. from διαγώνιος and the Lat. ending alis),
I diagonal: linea, Vitr. 9, 1; 6, 5.—And subst., dĭăgōnĭum, ii, n.: diagonii linea, id. 6, 4.
Latin > French (Gaffiot 2016)
dĭăgōnālis, e, et dĭăgōniŏs, a, on (διαγώνιος), diagonal [qui va d’un angle à l’autre] : Vitr. Arch. 9, 1 ; 6, 3.