From The Collaborative International Dictionary of English v.0.48: Dueler \Du"el*er\, n. One who engages in a duel. [R.] [Written also dueller.] --South. [1913 Webster]
Dueler \Du"el*er\, n. One who engages in a duel. [R.] [Written also dueller.] --South. [1913 Webster]