Alliteration

The repetition of the same sounds or of the same kinds of sounds at the beginning of words or in stressed syllables.  "Alliteration" from the Latin word “litera”, meaning “letters of the alphabet”, and the first known use of the word to refer to a literary device occurred around 1624. Alliteration narrowly refers to the repetition of a consonant in any syllables that, according to the poem's meter, are stressed, as in James Thomson's verse "Come…dragging the lazy languid Line along". Another examples are, "Peter Piper Picked a Peck of Pickled Peppers",  “John Jacob Jinklehiemer Smith”,  "She Sells Sea-Shells on the Sea-Shore".