used as a greeting to tell somebody that you are pleased that they are there Welcome home! Welcome to Oxford! Good evening everybody. Welcome to the show! Word Origin Old English wilcuma ‘a person whose coming is pleasing’, wilcumian (verb), from wil- ‘desire, pleasure’ + cuman ‘come’. The first element was later changed to wel- ‘well’, influenced by Old French bien venu or Old Norse velkominn.