'U.S.-style' originates from modern English components: the abbreviation 'U.S.' (from 'United States') and the noun 'style'. 'United States' is English in origin, where 'united' meant 'joined' and 'states' referred to 'political entities'; 'style' originates from Latin 'stilus', where 'stilus' meant 'a writing instrument.'

'U.S.-style' was formed in modern English by combining the abbreviation 'U.S.' (short for 'United States') with the English noun 'style'. The English word 'style' came into Middle English via Old French (estile/estyl) from Latin 'stilus', and eventually became the modern English 'style'.

Initially, Latin 'stilus' meant 'a writing instrument', but over time the sense shifted (via Old French and Middle English) to 'manner, mode, or characteristic way of doing something'; in 'U.S.-style' it now means 'in the manner characteristic of the United States'.