Etymology: Middle English sete, from Old Norse sæti; akin to Old English gesete seat, sittan to sit
Date: 13th century
a. a special chair of one in eminence; also the status represented by it
b. a chair, stool, or bench intended to be sat in or on
c. the particular part of something on which one rests in sitting <the seat of a chair> <trouser seat> d. buttocks 2. a. a seating accommodation <a seat for the game> <a 200-seat restaurant> b. a right of sitting <lost his seat in Congress> c. membership on an exchange 3. a. a place where something specified is prevalent ; center <a seat of learning> b. a place from which authority is exercised <the county seat> c. a bodily part in which some function or condition is centered <the brain as the seat of the mind> 4. posture in or way of sitting on horseback 5. a. a part at or forming the base of something b. a part (as a socket) or surface on or in which another part or surface rests II. verb Date: 1586 transitive verb 1. a. to install in a seat of dignity or office b. (1) to cause to sit or assist in finding a seat (2) to provide seats for <a theater seating 1000 persons> c. to put in a sitting position 2. to repair the seat of or provide a new seat for 3. to fit to or with a seat <seat a valve> intransitive verb 1. archaic to take one's seat or place 2. to fit correctly on a seat
New Collegiate Dictionary. 2001.