emptor

[emp-ter, -tawr]

noun

(especially in legal usage) a person who purchases or contracts to purchase; buyer.

Origin of emptor

1870–75; < Latin: buyer, equivalent to em(ere) to buy + -tor -tor, with intrusive -p-

He is an Emptor Familiæ, and inherits the legal clothing of the person whose place he begins to fill.
Ancient Law
Sir Henry James Sumner Maine