Please use the search function to check if a name in question has been defined or discussed already. A quick search on "Arlis" points you to:
http://www.behindthename.com/bb/arcview.php?id=371479&board=genCleveland Kent Evans writes;
"This is originally an English surname, spelled Arliss or Arles. According to Reaney & Wilson's A Dictionary of English Surnames, it was originally an Old English nickname meaning "earless"."
"We could have saved the earth, but we were too damned cheap" -- Kurt Vonnegut