Merriam-webster's definition for here/there as a noun is "here"=this location, and "here" as an adverb "here"=to/On this put ; at this place. The entry then lists dozens of circumstances of this cluster of conditions from 1852 to 1942, and from Massachusetts to California. Regarding the widespread wording "Search ahere," it https://wilhelmr528wwv4.wiki-jp.com/user