Origin: 1715–25; < Italian portafoglio, equivalent to porta-, stem of portare to carry (< Latin portāre) + foglio leaf, sheet (< Latin folium;see foil2)
1722, from It. portafoglio "a case for carrying loose papers," from porta, imperative of portare "to carry" (see port (1)) + foglio "sheet, leaf," from L. folium (see folio). Meaning "collection of securities held" is from 1930.