Madam, I'm Adam

Figure of speech. For no apparent reason other than the fact that Myles Crawford has just mentioned a man from Cork named Dick Adams, Lenehan bows to an imaginary shape and says, "Madam, I'm Adam. And Able was I ere I saw Elba." These are two well-known examples of the palindrome, a word, phrase, or sentence that reads the same from end to beginning as it does from beginning to end.

John Hunt 2023

Source: uselessetymology.com.

Source: purlandtraining.com.