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See also: àigù



From Middle French aigu, agu, from Old French agu, from Latin acūtus (sharp); related to English acute. The original Old French result was (preserved in the toponym Montheu < Latin Mons acutus (sharp mountain)), which was likely modified into the form agu based on the Latin, and then influenced by words like aigre, or aiguiser, as with aiguille.

Doublet of acut.


  • IPA(key): /ɛ.ɡy/, /e.ɡy/
  • (file)


aigu (feminine aiguë or aigüe, masculine plural aigus, feminine plural aiguës or aigües)

  1. sharp, pointy
  2. (of intelligence) acute, keen, discerning
  3. (of sound) sharp, loud and high-pitched
  4. (medicine) acute
  5. (mathematics, of an angle) acute
  6. (linguistics, of an accent) acute
  7. (phonetics) front
    • 1911 April, "Quelques mots sur la pronunciation des lettres Turques" in Dictionnaire turc-français[1]:
      Les quatres autres e, i, u, oeu sont aiguës.
      The other four e, i, u, oeu are front.

Derived terms[edit]

Related terms[edit]


  • Norwegian Bokmål: aigu

Further reading[edit]



From Proto-Finnic *aika. Cognates include Finnish aika and Karelian aika.



aigu (genitive aijan, partitive aigua)

  1. time
  2. (grammar) tense


Declension of aigu (Type 3/jalgu, ig-ij gradation)
singular plural
nominative aigu aijat
genitive aijan aijoin
partitive aigua aigoi
illative aigah aigoih
inessive aijas aijois
elative aijaspäi aijoispäi
allative aijale aijoile
adessive aijal aijoil
ablative aijalpäi aijoilpäi
translative aijakse aijoikse
essive aijannu aijoinnu
abessive aijattah aijoittah
comitative aijanke aijoinke
instructive aijoin
prolative aijači


  • N. Gilojeva; S. Rudakova (2009) Karjalan kielen Livvin murdehen algukursu [Beginners' course of Karelian language's Livvi dialect] (in Livvi), Petrozavodsk, →ISBN, page 3
  • Tatjana Boiko (2019), “aigu”, in Suuri Karjal-Venʹalaine Sanakniigu (livvin murreh) [The Big Karelian-Russian dictionary (Livvi dialect)], 2nd edition, →ISBN

Norwegian Bokmål[edit]


From French aigu (sharp, acute), from Middle French aigu, agu (sharp), from Old French agu, from Latin acūtus (sharpened, spicy, subtle), perfect passive participle of acuō (I sharpen, put an acute accent on), from acus (needle, pin; bodkin), from Proto-Italic *akus, from Proto-Indo-European *h₂eḱus, from *h₂eḱ- (sharp).



aigu m (definite singular aiguen, indefinite plural aiguer, definite plural aiguene)

  1. Only used in accent aigu (acute accent)


  • “aigu” in Det Norske Akademis ordbok (NAOB).
  • aigu” in Store norske leksikon