atgeir
atgeir is a spear or weapon family.
In detail
atgeir is a spear or weapon family.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Atgeir”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q4813150: atgeir
Consult the source