auctĭōnārĭus, a, um, adj. [auctio],
of or pertaining to an auction , auction- : atria, wherein auctions were held , Cic. Agr. 1, 3; Inscr. Orell. 3883 (v. atrium): tabulae, catalogues of goods to be sold by auction , Cic. Cat. 2, 8, 18.
auctiōnārius adj. auctio, of an auction : atria: tabulae, catalogues . ...
An Elementary Latin Dictionary