radius – Latin noun declension

Noun: radius
Hyphenation:

Gender: Masculine Declension: Second

Nominative

Singular	radius
Plural	radiī

Genitive

Singular	radiī; radī
Plural	radiōrum

Dative

Singular	radiō
Plural	radiīs

Accusative

Singular	radium
Plural	radiōs

Ablative

Singular	radiō
Plural	radiīs

Vocative

Singular	radie
Plural	radiī

Sample Sentences

“[...] ubi prīmōs crāstinus ortus (“… when at tomorrow’s early dawn the Titan [Sun] will have risen, and with [his] rays revealed the world.”) [29 BCE – 19 BCE, Vergilius, Aeneis 4.118-119]
At pater Hēliadum radiōs ubi tīnxerit undīs (But when the father of the Heliades shall have dipped his rays in the waves ….

(The father is the sun god; see: Heliades.)) [8 CE, Ovidius, Fasti 6.717]

Nouns inflected like radius

duplicārius, socius, palmārius, glūtinārius, tabernārius, aerārius, palumbārius, burcgrāvius, butticulārius, peloponnēsius, ōstiārius, foenārius, auxiliārius, mēnsārius, vēnālicius, salārius, cuppēdinārius, molīnārius, caepārius, herbārius, etc. (List truncated at 20 nouns)

Etymology

Of uncertain origin. Some connect it with rādīx and rāmus. Tucker suggests Proto-Indo-European *neredʰ- (“extend forth, rise, outward”) akin to Sanskrit वर्धते (vardhate, “rise, grow”), or from Ancient Greek ἄρδις (árdis, “sharp point”). May ultimately be from Proto-Indo-European *reh₁t- (“bar, beam, stem”). See: Ancient Greek Nouns 'ἄρδις'.

Verbs referencing "radius"

Dutch Nouns radio, Italian Nouns radio, English Nouns ray, French Nouns radian, English Nouns radius, French Nouns radius, Norwegian Bokmål Nouns radius, Norwegian Nynorsk Nouns radius, Italian Nouns raggio, Italian Nouns razzo, French Nouns rai, Italian Nouns rai, Catalan Nouns radi, German Nouns Radius, Spanish Nouns raya, Spanish Nouns rayo, English Nouns radial, Romanian Nouns rază, Polish Nouns raca, Swedish Nouns radie, English Nouns radiole, Italian Nouns irraggiamento, Galician Nouns raio, Portuguese Nouns raio, Polish Nouns radiologia, Russian Nouns радиус, Spanish Nouns radián, Irish Nouns raidió, Catalan Nouns raig, Galician Nouns raia, Galician Nouns raxo, English Nouns radialis, Ukrainian Nouns радіус.