Alliteration is derived from Latin’s “Latira”. It means “letters of alphabet”. It is a stylistic device in which a number of words, having the same first consonant sound, occur close together in a series.

Consider the following examples:

• But a better butter makes a batter better.
• A big bully beats a baby boy

http://literarydevices.net/alliteration/

Or she sells seashells by the sea shore.