BT Šab 148b(22) :הא באתרא דקיץ דמייהו, הא באתרא דלא קיץ דמייהו‏ : this one is in a place where their price is fixed; the other in a place where their price is not fixed
See the entire entry for dəmīn, dəmayyā n.m.pl.t. price, value