again and again

1. Repeatedly, often, as in I've told you again and again, don't turn up the heat. This idiom uses repetition for the purpose of emphasis (as does its synonym, over and over). Shakespeare used it in Othello (1:3): “I have told thee often, and I retell thee again and again.” [c. 1600]

Related Words

• frequently 
• once again www.thesaurus.com
• regularly 
• repeatedly