SEAT n. 3 definitions
The place or thing upon which one sits; hence; anything made to be sat in or upon, as a chair, bench, stool, saddle, or the like. And Jesus . . . overthrew the tables of the money changers, and the seats of them that sold doves. Matt. xxi. 12.
SET n.
rally complement each other, and usually go together; an assortment; a suit; as, a set of chairs, of china, of surgical or mathematical instruments, of books, etc. [In this sense, sometimes incorrectly written sett.]
SIT v. 2 definitions
body; -- said of human beings, and sometimes of other animals; as, to sit on a sofa, on a chair, or on the ground. And he came and took the book put of the right hand of him that sate upon the seat. Bible (1551) (Rev. v. 7.) I pray you, jest, sir, as you sit at dinner. Shak.