diagonalis

Latin

Etymology

From Ancient Greek διαγώνιος (diagṓnios, “from angle to angle”), from διά (diá, “across”) + γωνία (gōnía, “angle”).

Pronunciation

• (Classical) IPA^(key): /di.a.ɡoːˈnaː.lis/, [d̪iäɡoːˈnäːlʲɪs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /di.a.ɡoˈna.lis/, [d̪iäɡoˈnäːlis]

Adjective

diagōnālis (neuter diagōnāle); third-declension two-termination adjective

1. diagonal

Declension

Third-declension two-termination adjective.

Number	Singular			Plural
Case / Gender	Masc./Fem.	Neuter		Masc./Fem.	Neuter
Nominative	diagōnālis	diagōnāle		diagōnālēs	diagōnālia
Genitive	diagōnālis			diagōnālium
Dative	diagōnālī			diagōnālibus
Accusative	diagōnālem	diagōnāle		diagōnālēs diagōnālīs	diagōnālia
Ablative	diagōnālī			diagōnālibus
Vocative	diagōnālis	diagōnāle		diagōnālēs	diagōnālia

Descendants

• Catalan: diagonal
• French: diagonal
• Galician: diagonal
• Italian: diagonale
• Portuguese: diagonal
• Romanian: diagonal
• Spanish: diagonal

References

• “diagonalis”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• diagonalis in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.