'fjord' originates from Old Norse, specifically the word 'fjǫrðr', where 'fjǫrðr' meant 'a passage or channel'.

'fjǫrðr' changed from Old Norse word 'fjǫrðr' and eventually became the modern English word 'fjord'.

Initially, it meant 'a passage or channel', but over time it evolved into its current meaning of 'a long, narrow, deep inlet of the sea'.