'unwelcomed' originates from Old English, specifically the word 'wilcuma,' where 'wil-' meant 'pleasure' and 'cuma' meant 'guest.'

'wilcuma' transformed into the Middle English word 'welcume,' and eventually became the modern English word 'welcome.' The prefix 'un-' was added to form 'unwelcome.'

Initially, it meant 'a guest who is not pleasing,' but over time it evolved into its current meaning of 'not received with pleasure or approval.'