Part of speech: possessive pronoun
Etymology
[Mod E OUR ← Prot-Germ *unsera, *unsara; Goth unsar; O Fris ūser, ūse; O Sax ūsa, ūse, ūser; Dt onze; OHG unser, unsēr, unsar (Mod G unser); O Icel várr, vár (Mod Icel vor); Sw vår]