I happened to learn the word “umpty” in association with “umpteen” appearing in the following sentence in the article titled “Obama’s Gitmo Problem” in May 24 New York Times:
Late Wednesday afternoon, President Obama made his big national security speech — in which he said, for the umpteenth time, that the prison in Guantánamo Bay, Cuba, should be closed.
Both Merriam-Webster online dictionary and Readers English Japanese Dictionary at hand define ‘umpty’ as ‘such and such,’ in the same wording with an example, ‘umpty percent of all new houses’ in Merriam Webster. It sounds like simply saying ‘a certain’ or 'X' against an unidentifiable number or thing.
While both ‘Free dictionary’ and ‘Dictionary com’ define it as ‘an indefinite, fairly large number’ in the same wording.
Though implications of ‘such and such’ looks different from ‘an indefinite, large number’ to me, are all saying the same thing, or there are two different meanings in this word?
Neither Cambridge nor Oxford Dictionary carries this word. Is ‘umpty’ popular English word?
Can you give me a couple of examples of the use of “umpty” other than ‘umpty percent of something’’?