BT Qid 70a(38) :מי סאני ספסל דאמור רבנן או איצטבא דאמרי אינשי‏ : is (the Hebrew term) ספסל which the scholars said or (the Aramaic term) איצטבא which people say distasteful?
See the entire entry for ˀyṣṭbˀ n.m. bench