What is an Example of palindromic preposition?

There aren't any palindromic prepositions in the English language. Here's why:

* Palindromes: Read the same forwards and backwards (e.g., racecar, level).

* Prepositions: Words that show the relationship between a noun or pronoun and another word in the sentence (e.g., on, in, at, to, from, etc.).

Since prepositions generally consist of multiple letters and often have unique sounds, it's highly unlikely to find one that is also a palindrome.