triangularis

Latin

Etymology

Etymology tree

Proto-Indo-European *tréyes

Proto-Italic *trejes

Proto-Italic *trēs

Latin trēs

Proto-Indo-European *h₂eng-

Proto-Indo-European *h₂engulos

Proto-Italic *angulos

Latin angulus

Latin triangulus

Proto-Indo-European *h₂el-

Proto-Indo-European *-is

Proto-Indo-European *h₂élisder.?

Proto-Italic *-ālis

Latin -ālis

Latin -āris

Latin triangulāris

From triangulus + -āris.

Pronunciation

• (Classical Latin) IPA^(key): [tri.aŋ.ɡʊˈɫaː.rɪs]
• (modern Italianate Ecclesiastical) IPA^(key): [tri.aŋ.ɡuˈlaː.ris]

Adjective

triangulāris (neuter triangulāre); third-declension two-termination adjective (Late Latin)

1. triangular

Declension

Third-declension two-termination adjective.

	singular			plural
	masc./fem.	neuter		masc./fem.	neuter
nominative	triangulāris	triangulāre		triangulārēs	triangulāria
genitive	triangulāris			triangulārium
dative	triangulārī			triangulāribus
accusative	triangulārem	triangulāre		triangulārīs triangulārēs	triangulāria
ablative	triangulārī			triangulāribus
vocative	triangulāris	triangulāre		triangulārēs	triangulāria

Descendants

• → French: triangulaire (learned)

See also

• quadrangulāris

References

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