alliteration (n.) Look up alliteration at Dictionary.com
1650s, "repetition of the same sound or letter at the beginning of words in close succession," from Modern Latin alliterationem (nominative alliteratio), noun of action from past participle stem of alliterare "to begin with the same letter," from Latin ad "to" (see ad-) + littera (also litera) "letter, script" (see letter (n.1)). Related: Alliterational.