いずれ
いずれ · izure · JLPT N3 · noun
which
izure sounds like is your…? as in which one is yours?
Old いづ (where, also in いづこ) plus れ, the same ending as これ, それ, あれ and どれ. So いずれ is the old, formal どれ. It also means sooner or later, as in one of these days.