'customer-priority' is a compound word formed from 'customer' and 'priority', where 'customer' refers to a person who purchases goods or services, and 'priority' means the fact or condition of being regarded or treated as more important.

'customer' comes from the Old French 'custumer', and 'priority' comes from the Latin 'prioritas'.

Initially, 'priority' meant 'precedence in time or order', but in this context, it evolved to mean 'importance'.