aequilaterus

Latin

Alternative forms

• aequilaterālis
• aequilatus

Etymology

aequus (“equal, even”) +‎ latus (“side”) +‎ -us (adjective-forming suffix).

Pronunciation

• (Classical Latin) IPA^(key): /ae̯.kʷiˈla.te.rus/, [äe̯kʷɪˈɫ̪ät̪ɛrʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /e.kwiˈla.te.rus/, [ekwiˈläːt̪erus]

Adjective

aequilaterus (feminine aequilatera, neuter aequilaterum); first/second-declension adjective

1. (Late Latin, geometry) equilateral

Declension

First/second-declension adjective.

Number	Singular				Plural
Case / Gender	Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
Nominative	aequilaterus	aequilatera	aequilaterum		aequilaterī	aequilaterae	aequilatera
Genitive	aequilaterī	aequilaterae	aequilaterī		aequilaterōrum	aequilaterārum	aequilaterōrum
Dative	aequilaterō		aequilaterō		aequilaterīs
Accusative	aequilaterum	aequilateram	aequilaterum		aequilaterōs	aequilaterās	aequilatera
Ablative	aequilaterō	aequilaterā	aequilaterō		aequilaterīs
Vocative	aequilatere	aequilatera	aequilaterum		aequilaterī	aequilaterae	aequilatera

Descendants

• → Portuguese: equilátero (learned)
• → Spanish: equilátero (learned)

References

• aequilaterus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• aequilaterus in Georges, Karl Ernst, Georges, Heinrich (1913–1918) Ausführliches lateinisch-deutsches Handwörterbuch, 8th edition, volume 1, Hahnsche Buchhandlung
• “aequilaterus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press