n.1660s, genus of swordfish, from Greek xiphias "swordfish," from xiphos "sword," of unknown origin. if (window.googletag) {googletag.cmd.push(function() { googletag.display('dcomMobileSERPDisplayTopAd-300x250'); });} else {console.error('googletag not defined, dcomMobileSERPDisplayTopAd-300x250');}