upset price (plural upset prices)

1. The lowest price at which an auction item may be sold.

   Synonyms: reserve

   • 1815 February 23, [Walter Scott], Guy Mannering; or, The Astrologer. [...] In Three Volumes, volume (please specify ), Edinburgh: Printed by James Ballantyne and Co. for Longman, Hurst, Rees, Orme, and Brown, […]; and Archibald Constable and Co., […], OCLC 742335644 ↗:

• French: prix de réserve