View source for nef

{{also|nèf|nêf}}
==English==

===Pronunciation===
* {{IPA|en|/nɛf/}}
* {{audio|en|LL-Q1860 (eng)-Vealhurl-nef.wav|a=Southern England}}
* {{rhymes|en|ɛf|s=1}}

===Etymology 1===
[[File:Nef, unknown artist, Ulm, Germany, late 1500s, parcel gilt silver - Peabody Essex Museum - DSC06922.jpg|thumb|A 1500s nef from Germany]]
Borrowed from {{bor|en|fr|nef}}. {{doublet|en|nave|nau}}.

====Noun====
{{en-noun}}

# An extravagant table [[ornament]] and [[container]] used in the [[Middle Ages]] and [[Renaissance]], made in the shape of a [[ship]].

====See also====
* {{l|enm|cadenas}}
* {{l|en|navicula}}

===Etymology 2===
Short for ''[[numerically]] [[effective]]''; introduced by Miles Reid.

====Adjective====
{{en-adj|-}}
{{wikipedia|Nef line bundle}}

# {{lb|en|algebraic geometry}} Of a [[line bundle]] on a complete algebraic variety over a [[field]]: such that the [[degree]] of its [[restriction]] to every algebraic curve in the [[variety]] is non-negative.
#* {{quote-journal|en|title=Minimal Models of Canonical 3-Folds|author=Miles Reid|journal=Advanced Studies in Pure Mathematics|volume=1|year=1983|page=131|passage={{...}} this condition is the numerical consequence of the condition that for some <math>m > 0</math>, the linear system <math>|mD|</math> is effective and free; thus '''nef''' = "numerically (effective and free)".}}

=====Derived terms=====
* [[nefness]]

===Anagrams===
* {{anagrams|en|a=efn|ENF|fen}}

{{cln|en|three-letter words}}

==French==

===Etymology===
{{inh+|fr|frm|nef}}, from {{inh|fr|fro|nef}}, from {{inh|fr|la|nāvis|nāvem}}, ultimately from {{der|fr|ine-pro|*néh₂us}}. Displaced by {{m|fr|bateau}} and {{m|fr|navire}} in the sense of "boat".

===Pronunciation===
* {{fr-IPA}}
* {{audio|fr|LL-Q150 (fra)-DSwissK-nef.wav|a=Switzerland}}

===Noun===
{{fr-noun|f}}

# {{lb|fr|obsolete|_|or|_|poetic}} [[vessel]], [[ship]]
# {{lb|fr|architecture}} [[nave]]

====Derived terms====
{{col3|fr|
|aéronef
|porte-aéronefs
|astronef
}}

====Related terms====
{{col3|fr|
|nacelle
|naval
|navire
}}

====Descendants====
* {{desc|br|nev|bor=1}}
* {{desc|en|nef|bor=1}}

====See also====
* {{l|fr|barque}}
* {{l|fr|vaisseau}}

===Further reading===
* {{R:fr:TLFi}}

==Icelandic==

===Etymology===
From {{inh|is|non|nef}}, from {{inh|is|gem-pro|*nabją}}. Cognate with {{cog|en|neb}}.

===Pronunciation===
* {{IPA|is|/nɛːv/}}
* {{rhymes|is|ɛːv|s=1}}

===Noun===
{{is-noun|n|nefs|nef}}

# [[nose]]
# [[beak]]

====Declension====
{{is-decl-noun-n-s|n|e|f|j=j}}

====Derived terms====
* {{l|is|taka í nefið}} (to take [[snuff]])
* {{l|is|fitja upp á nefið}} (to [[turn up one's nose]])
* {{l|is|með nefið ofan í hvers manns koppi}} ([[nosy]])
* {{l|is|stökkva upp á nef sér}} (to [[flare up]], to [[get angry]])
* {{l|is|neflaus}}
* {{l|is|hafa bein í nefinu}}

==Mauritian Creole==
{{cardinalbox|mfe|8|9|10|wit|dis|ord=neviem}}

===Etymology===
From {{der|mfe|fr|neuf}}.

===Numeral===
{{head|mfe|numeral}}

# {{cln|mfe|cardinal numbers}} [[nine]]

===Adjective===
{{head|mfe|adjective}}

# [[new]]

==Middle French==

===Alternative forms===
* {{alter|frm|nau}}

===Etymology===
From {{inh|frm|fro|nef}}, from {{inh|frm|la|navis|nāvis, nāvem}}.

===Noun===
{{frm-noun|f|pl2=nefz}}

# [[boat]]; [[ship]]; [[watercraft]]

====Descendants====
* {{desctree|fr|nef|qq=obsolete or poetic}}
* {{desc|nrf|nef}}

==Old Cornish==

===Etymology===
from {{inh|oco|cel-bry-pro|*neβ̃}}, from {{inh|oco|cel-pro|*nemos}}, from {{inh|oco|ine-pro|*nébʰos||cloud}}.

===Noun===
{{head|oco|noun}}

# [[Heaven]], [[Sky]]

==Old French==

===Alternative forms===
* {{alter|fro|naf|nau}}

===Etymology===
From {{inh|fro|la|navis|nāvis, nāvem}}.

===Noun===
{{fro-noun|f|nés||nés}}

# [[boat]]; [[ship]]; [[watercraft]]

====Related terms====
* {{l|fro|nacele}}

====Descendants====
* {{desctree|frm|nef|qq=Parisian dialect}}
* {{desc|roa-poi|nau}}

{{C|fro|Nautical}}

==Old Norse==

===Etymology===
From {{inh|non|gem-pro|*nabją}}.

===Noun===
{{non-noun|n|nefs|nef}}

# [[nose]]
# [[beak]]

====Declension====
{{non-decl-n-ja|nef}}

====Descendants====
* {{desc|is|nef}}; {{l|is|nebbi}}
* {{desc|fo|nev|nebb|nebbi}}
* {{desc|nrn|nev}}
* {{desc|no|nebb}} <!--
* {{desc|gmq-bot|näf|nev}}-->
* {{desc|gmq-osw|næf}}
** {{desc|sv|näv}} {{qualifier|dialectal}}
* {{desc|da|næb}}

==Volapük==

===Noun===
{{vo-noun}}

# [[nephew]]
# [[niece]]

====Declension====
{{vo-decl-noun}}

{{C|vo|Family}}

==Welsh==

===Etymology===
From {{inh|cy|wlm|new}}, from {{inh|cy|owl|nem}}, from {{inh|cy|cel-bry-pro|*neβ̃}}, from {{inh|cy|cel-pro|*nemos}}, from {{inh|cy|ine-pro|*nébʰos||cloud}}. Cognate with {{cog|br|neñv}}, {{cog|kw|nev}} and {{cog|ga|neamh}}.

===Pronunciation===
* {{IPA|cy|/neːv/}}
* {{rhymes|cy|eːv|s=1}}

===Noun===
{{cy-noun|f|nefoedd}}

# {{lb|cy|frequently|in the plural|_|with singular meaning}} [[heaven]]
#: {{syn|cy|nen}}

====Related terms====
* {{l|cy|nwyfre||firmament, the ether}}
* {{l|cy|nyfel||firmament, the ether}}
* {{l|cy|nyfelwy||firmament, the ether}}

===References===
* {{R:cy:GPC}}