archaic; 17c. as short for in it. if (window.googletag) {googletag.cmd.push(function() { googletag.display('dcomMobileSERPDisplayTopAd-300x250'); });} else {console.error('googletag not defined, dcomMobileSERPDisplayTopAd-300x250');} archaic or poetic contraction of in it.
Liberal Dictionary English Dictionary