'engross' originates from Old French, specifically the word 'engrosser,' where 'en-' meant 'in' and 'gros' meant 'large or thick.'

'engrosser' transformed into the Middle English word 'engrossen,' and eventually became the modern English word 'engross.'

Initially, it meant 'to make a final copy of a document,' but over time it evolved into its current meaning of 'to absorb all the attention or interest of someone.'