eiðr

Old Norse

Etymology

From Proto-Norse *ᚨᛁᚦᚨᛉ (*aiþaʀ) (attested in the name ᚨᛁᚦᚨᛚᚨᛏᚨᛉ (aiþalātaz)), from Proto-Germanic *aiþaz, whence also Old English āþ (English oath), Old Frisian ēth, Old Saxon ēth, Old High German eid, Gothic 𐌰𐌹𐌸𐍃 (aiþs). Ultimately from Proto-Indo-European *h₁óytos (“oath”).

Noun

eiðr m

1. oath

Declension

Declension of eiðr (strong a-stem)

masculine	singular		plural
	indefinite	definite	indefinite	definite
nominative	eiðr	eiðrinn	eiðar	eiðarnir
accusative	eið	eiðinn	eiða	eiðana
dative	eiði	eiðinum	eiðum	eiðunum
genitive	eiðs	eiðsins	eiða	eiðanna

Derived terms

• eiðabrigði n (“breach of an oath”)
• eiðafullting n (“oath-help”)
• eiðakona f (“female compurgator”)
• eiðalið n (“oath compurgators”)
• eiðamál n (“the matter of taking an oath”)
• eiðbróðir m (“a sworn confederate”)
• eiðbundinn (“oath-bound”)
• eiðfall n (“failing in one's oath”)
• eiðfœra (“to charge one with a thing by an oath”)
• eiðfœring f (“charging by an oath”)
• eiðfœrr (“able or competent to take an oath”)
• eiðfœrsla f (“charging by an oath”)
• eiðhjǫlp f (“oath-help”)
• eiðlaust (“without an oath”)
• eiðrof n (“breach of an oath”)
• eiðrofi m (“perjurer”)
• eiðspjall n (“taking of an oath”)
• eiðstafr m (“oath formula”)
• eiðsvari m (“liegeman”)
• eiðsœrr (“that may be sworn to, absolutely true”)
• eiðunning f (“taking of an oath”)
• eiðvarr (“conscientious as to an oath”)
• eiðvætti n (“testimony on oath”)

Descendants

• Icelandic: eiður
• Faroese: eiður
• Norwegian Nynorsk: eid
• Old Swedish: ēþer
  • Swedish: ed
• Old Danish: ēþ, eth
  • Danish: ed
    • Norwegian Bokmål: ed
• Old Gutnish: aiþr
  • Gutnish: aid

Further reading

• Zoëga, Geir T. (1910) “eiðr”, in A Concise Dictionary of Old Icelandic, Oxford: Clarendon Press, page 104; also available at the Internet Archive