Origin of loaferprobably contr. ; from land-loafer ; from German landläufer, a vagabond (akin to Dutch landlooper, obsolete eastern; English landloper) ; from land, land + laufen, to run: see leap a person who loafs; lounger; idler
Origin of loafer< Loafer, a former trademark a moccasinlike sport shoe for informal wear
Origin of loaferShort for obsolete land-loafer, vagabond, idler, possibly partial translation of obsolete German Landl&adie;ufer, from Middle High German landl&odie;ufer : land, land + l&odie;ufer, runner (from loufen, to run, from Old High German hlouffan).
Perhaps short for landloafer, possibly a partial translation of German Landläufer [Cf Dial Ger loofen "to run"]; or connected to Middle English lo(o)ve, lo(o)ffinge "a remnant, the rest, that which remains or lingers" from Old English lāf (“remainder, residue, what is left”). Akin to Scots lave "the rest, remainder", Old English lǣfan "to leave behind". More at leave