Welcome

"ƿil cuman," (Old English pronunciation: [/ˈwilˌku.man/]) an Old English welcome phrase, which was used over a thousand years ago and evolved into the modern English "welcome".
A welcome mat.
State welcome sign at the Virginia border.

A welcome is a kind of greeting designed to introduce a person to a new place or situation, and to make them feel at ease. The term can similarly be used to describe the feeling of being accepted on the part of the new person.