One day I thought of this. Can you think of a 3 letter word that when you say each letter of the word, from first to last, you are also forming a word that sounds like the letter you are saying along with the previous letter(s) in the word? Spoiler inn
I added more info about the word. Your words don't meet the criteria. Ex. If you say the second letter of the word, in must form a word with all the previous letters. and so forth.