As Jacob Grimm pointed out, the serving of a boar's head at banquets and particularly at Queen's College, Oxford may also be a reminiscence of the Yule boar-blót.
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However, following Eduard Sievers, it is usually now spelled with a short o and taken as meaning "herd boar, leading boar", as Lombard sonarþair is defined in the Edictus Rothari as the boar "which fights and beats all other boars in the herd".