Emily Dickinson Lexicon

FOLD, n.² [Sax. feald; Sw. fåll; G. falte; Russ. phalda; but the same word as the preceding.]

1. The doubling of any flexible substance, as cloth; complication; a plait; one part turned or bent and laid on another; as, a fold of linen.
2. In composition, the same quantity added; as, two fold, fourfold, ten fold, that is, twice as much, four times as much, ten times as much.