Trøndelag: feast, Æsir, animal sacrifice and árbót
OLD NORSE
Þat haust váru sǫgð Óláfi konungi þau tíðendi innan ór Þrándheimi, at bœndr hefði þar haft veizlur fjǫlmennar at veturnóttum … minni ǫll signuð Ásum at fornum sið … drepit naut ok hross … framið blót … til árbótar.
TRANSLATION
That autumn King Óláfr was told that farmers in Þrándheimr had held large feasts at Vetrnætr … the commemorative toasts were consecrated to the Æsir according to ancient custom … cattle and horses were killed … blót was performed … for improvement/prosperity of the year.
DIRECTLY ATTESTED:
Autumn; populous Vetrnætr feasts; heavy drinking; minni consecrated to the Æsir; cattle and horses killed; ritual use of blood; blót; til árbótar.
CONTEXTUAL:
The narrator frames the information as reports reaching King Óláfr rather than an event he personally witnesses.
MY INTERPRETATION:
This is the richest single ritual description in the current corpus. The explicit til árbótar is especially valuable because it supplies a stated purpose.
NOT ESTABLISHED:
That this Trøndelag practice was universal; that all Vetrnætr rites used animal sacrifice; that til árbótar defines every Vetrnætr observance.
QUOTED FROM:
Heimskringla II, Óláfs saga helga, ch. 107; Bjarni Aðalbjarnarson, ed., Íslenzk fornrit XXVII (Reykjavík, 1945), pp. 179–181.
FIND IT YOURSELF:
Search: veizlur fjǫlmennar at veturnóttum; minni ǫll signuð Ásum; til árbótar.
TEXTUAL NOTE:
The account is presented through reported information rather than as an eyewitness description. Those report-formulas matter when assessing how directly the passage can be used to reconstruct earlier practice.