Same Sex Marriage Plebiscite - Non Binding??, page-435

Oh yes, I remember now, Tony offered that clanger, too. And repository is, indeed, the elusive word the speaker/writer is wanting.
They can sound similar to those who are not well acquainted with these words. A bit like posters who accuse others of writing "dribble" rather than "drivel". Kids often say goverment because that is what they hear. They often hear it that way because it is what some people say. Pretty funny.