They don't. Well not all of them. Actually its not common at all.
There are no US states which have names that end in the letter R.
codscadshad
Brazil
Animal names that end with the letter o:armadillobuffalocuckoogeckokangaroo
Four month names (January, February,May, July) end with the letter 'y'.
Nixon.
William Howard TaftRichard M. Nixon
Belgian Bank ended in 2005.
Because a lot of plural words in French end in x instead of s. For example, "gateau" means "cake", and "gateaux" means "cakes". So those last names ending in x are a plural word.
Not necessarily, Italian last names can be spelled with a vowel at the end, but not all Italian last names are spelt with a vowel(s).
There are currently no countries in Europe that end in the letter "i."
There are no US states which have names that end in the letter R.
Polish and men's end in I
There are no US states which have names that end in the letter R.
Generale Belgian Bank ended in 1998.
Belgian League Cup ended in 2000.
Belgian colonial empire ended in 1962.