Othello’s characteristic idiom is dignified blank verse, with the rhetoric power to seduce and keep Desdemona. When his persona is fracturing, he exclaims “handkerchief” three times, his syntax reflecting his mental state, colouring the words “It is not words shake me thus” with irony. As Iago corrupts him, he begins to use oaths such as “Zounds”, associated with Iago.