'vendor-regulated' originates from the combination of 'vendor' and 'regulated', where 'vendor' refers to a seller or supplier and 'regulated' means controlled or governed.

'Vendor' comes from the Latin word 'vendere', meaning 'to sell', and 'regulated' comes from the Latin 'regulare', meaning 'to control'.

Initially, 'vendor-regulated' referred to any control by a seller, but now it often implies specific compliance with vendor standards.