From The Collaborative International Dictionary of English v.0.48: Folder \Fold"er\, n. One who, or that which, folds; esp., a flat, knifelike instrument used for folding paper. [1913 Webster]
Folder \Fold"er\, n. One who, or that which, folds; esp., a flat, knifelike instrument used for folding paper. [1913 Webster]