our is geiren

geiren = our (possessive pronoun) (some things Google found for "geiren": an uncommon to rare term; a rare last name; a very rare first name; user names; name of a World of Warcraft character; name of a place in Norway)

Word derivation for "our" :
Basque = gure, Finnish = meidän + -mme
Miresua = geiren

In Finnish, -mme is a possessive suffix appended to the main word owned, which is used used with or without the genitive meidän.

I considered making this word gemen, to use an M from Finnish, but that would have made my possessive pronouns even more irregular. M will appear in the ending for most 1st person plural verb conjugations.