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novio (Noun) "romantic partner;" (masc.) "groom"

13th cent. From Vulgar Latin novius "newlywed," from Latin novus "new" (see nuevo).
nudo (1) (Adjective) "naked"

13th cent. From Latin nudus 'id.' From Proto-Italic *noweþo- 'id.' From Proto-Indo-European *nogw-odho- 'id.,' derived from *nogws 'id.'

Germanic: East Germanic: Gothic naqaþs "naked;" North Germanic: Old Norse nøkkviðr "naked;" West Germanic: Old High German nackot "naked," Old English nacod 'id.' (English naked)

Indo-European: Celtic: Old Irish nocht "naked," Middle Welsh noeth 'id.,' Old Breton noit 'id.,' Cornish noeth 'id.;' Balto-Slavic: Old Church Slavonic nagъ "naked," Russian nagój 'id.,' Czech nahý 'id.,' Polish nagi 'id.,' Slovene nȃg 'id.,' Old Prussian nognan "leather," Lithuanian núogas "naked," Latvian nuôgs 'id.;' Armenian: merk "naked;" Indo-Iranian: Sanskrit nagná- "naked," Young Avestan maɣna- 'id.;' Anatolian: Hittite nekumant- "naked"
nudo (2) m. (Noun) "knot"

13th cent. From Vulgar Latin *nudus 'id.,' from Latin nodus 'id.' The sound change from -o- to -u- is not understood. From Proto-Italic *nōdo- 'id.' From Proto-Indo-European *neh3-do- 'id.'

Italic: Latin nassa "wicker basket fish trap"

Indo-European: Celtic: Old Irish nascaid "to bind," Middle Breton nasca 'id.;' Germanic: Gothic nati "net," Old Norse net 'id.,' Old High German nezzi 'id.,' Old Saxon netti 'id.,' English net
nuestro (Possessive Pronoun) "our(s)"

12th cent. From Latin nostrum, accusative case of noster 'id.' From Proto-Italic *nos-tero- 'id.' From Proto-Indo-European *n̥s-tero- 'id.,' from *nōs- "us" and comparative suffix *-tero- (see -tr-).

Dialect Variants: Zamora nueso, probably a modern reflex of nuesso (14th cent.).

Romance: Western Vulgar Latin: Asturian nuesu, Portuguese nosso, Galician noso, Catalan nostre, French notre, Italian nostro ; Eastern Vulgar Latin: Aromanian nostru, Romanian nostru ; Sardinian: nostru
nueve (Cardinal Number) "nine"

12th cent. From Latin novem 'id.' From Proto-Italic *newn̥ 'id.' From Proto-Indo-European *h1neu̯n 'id.'

Romance: Western Vulgar Latin: Portuguese nove, Galician nove, Catalan nou, French neuf, Italian nove ; Eastern Vulgar Latin: Aromanian noauã, Romanian nouă ; Sardinian:noi, nobe

Indo-European: Celtic: Old Irish nóin "nine," Old Welsh nauou 'id.,' Old Breton nau 'id.,' Cornish naw 'id.;' Germanic: Gothic niun "nine," Old Norse níu 'id.,' Old High German niun 'id.,' Old Saxon nigun 'id.,' English nine; Balto-Slavic: Old Church Slavonic devętь "nine," Russian dévjat' 'id.,' Czech devět 'id.,' Polish dziewięć 'id.,' Slovene dévet 'id.,' Lithuanian devynì 'id.,' Latvian deviņi 'id.;' Albanian: nëndë "nine;" Hellenic: Ancient Greek ἐννέα (ennéa) "nine;" Armenian: inn "nine;" Indo-Iranian: Sanskrit náva "nine," Avestan nauua 'id.;' Tocharian: A ñu "nine," B ñu 'id.'
nuevo (Adjective) "new"

11th cent. From Latin novus 'id.' From Proto-Italic *nowo- 'id.' From Proto-Indo-European *neu̯o- 'id.' From *nu̯ "now."

Romance: Western Vulgar Latin: Asturian nuevu, Portuguese novo, Galician novo, Catalan nou, French neuf, Italian novo ; Eastern Vulgar Latin: Aromanian nãu, Romanian nou ; Sardinian: nobu

Italic: Umbrian nuvis "new"

Indo-European: Celtic: Celtiberian nouiza "new?" (meaning uncertain), Gaulish Nouio- "new," Old Irish nuë 'id.,' Old Welsh newydd 'id.,' Old Breton nouuid 'id.,' Cornish newyth 'id.;' Germanic: Gothic niujis "new," Old Norse nýr 'id.,' Old High German niuwi 'id.,' Old Saxon niuwi 'id.,' English new; Balto-Slavic: Old Church Slavonic novъ "new," Russian nóvyj 'id.,' Czech nový 'id.,' Polish nowy 'id.,' Slovene nòv 'id.,' Lithuanian naũjas 'id.;' Hellenic: Ancient Greek νέος (néos) "new," Mycenaean ne-wo- 'id.,' Cyprus νεϝό- (newó) 'id.;' Armenian: nor "new;" Indo-Iranian: Sanskrit náva- "new," Young Avestan nauua- 'id.;' Tocharian: A ñu "new," B ñuwe 'id.;' Anatolian: Hittite nēu̯a- "new," Cuneiform Luwian nāu̯a/i- 'id.'
número m. (Noun) "number"

15th cent. borrowing from Latin numerus 'id.' It replaced an earlier word nombre "number," borrowed from Old Catalan nombre. From Proto-Italic *nomero- 'id.' From Proto-Indo-European *neme-e/os- "distributed amount." From a root *nem- "to allot."

Romance: Western Vulgar Latin: Asturian númberu, Portuguese número, Galician número, Catalan número, French numéro, Italian numero ; Eastern Vulgar Latin: Romanian număr ; Sardinian: númeru

Italic: Latin nemus "forest"

Indo-European: Hellenic: Ancient Greek νέμω (némo) "I distribute," "I pasture," νομός (nomós) "pasture," "province;" Indo-Iranian: Sanskrit námas- "worship," Avestan nəmah- "homage;" Anatolian: Hittite lammar- "moment," Hieroglyphic Luwian lamini "at the time"
nunca (Adverb) "never"

12th cent. Old Spanish nunqua. From Latin numquam 'id.,' a negation of umquam "ever" with ne- (see ni). Latin umquam is from Proto-Italic *kwumk2ām 'id.' From *kwum "ever" and reinforced by *kwām "by what" (see cuan). Proto-Italic *kwum is from Proto-Indo-European *kwo-m "ever," a *kwo- pronominal stem. See also cuando, cuan, cuanto, quien, que.

Romance: Western Vulgar Latin: Asturian nunca, Portuguese nunca, Galician nunca

The Latin word umquam, not negated, survived in other Romance languages but not in Spanish (Italian unqua, French onc, and Romanian încă).