'regular-price' originates from the combination of 'regular' and 'price'. 'Regular' comes from Latin 'regularis', meaning 'consistent' or 'normal', and 'price' comes from Latin 'pretium', meaning 'value' or 'worth'.

'Regular' evolved from the Latin 'regularis' through Old French 'reguler', and 'price' evolved from Latin 'pretium' through Old French 'pris', eventually forming the modern English term 'regular-price'.

Initially, 'regular' meant 'consistent' and 'price' meant 'value'. Over time, 'regular-price' came to mean the standard cost of an item without discounts.