fertugur

Icelandic

Etymology

From fer- (“four”) +‎ tugur (“group of ten”).

Adjective

fertugur (not comparable)

1. forty years old; forty, quadragenarian
2. twenty fathoms tall/deep/long/across/etc. (which is fourty of a unit)

Usage notes

• Also used as a noun in the neuter singular, eg. vera um fertugt (“be about forty”), hafa tvo um fertugt (“be forty-two”).

Declension

positive forms of fertugur

strong declension (indefinite)	singular	masculine	feminine	neuter
	nominative	fertugur	fertug	fertugt
	accusative	fertugan	fertuga
	dative	fertugum	fertugri	fertugu
	genitive	fertugs	fertugrar	fertugs
	plural	masculine	feminine	neuter
	nominative	fertugir	fertugar	fertug
	accusative	fertuga
	dative	fertugum
	genitive	fertugra
weak declension (definite)	singular	masculine	feminine	neuter
	nominative	fertugi	fertuga	fertuga
	acc/dat/gen	fertuga	fertugu
	plural (all-case)	fertugu

Related terms

• tugur
  • tvítugur
  • þrítugur
  • fimmtugur
  • sextugur
  • sjötugur
  • nítugur

See also

• ræður
  • sjöræður
  • áttræður
  • níræður
  • tíræður
  • tólfræður

References

• Kristín Bjarnadóttir, editor (2002–2025), “fertugur”, in Beygingarlýsing íslensks nútímamáls [The Database of Modern Icelandic Inflection] (in Icelandic), Reykjavík: The Árni Magnússon Institute for Icelandic Studies
• Mörður Árnason (2019) Íslensk orðabók, 5th edition, Reykjavík: Forlagið
• “fertugur” in the Dictionary of Modern Icelandic (in Icelandic) and ISLEX (in the Nordic languages)