senior sophister
Webster's Dictionary (GCIDE)
Senior \Sen"ior\, n.
1.A person who is older than another; one more advanced in life. [1913 Webster]
2.One older in office, or whose entrance upon office was anterior to that of another; one prior in grade. [1913 Webster]
3.An aged person; an older. --Dryden. [1913 Webster]
Each village senior paused to scan, And speak the lovely caravan.— Emerson.[1913 Webster]
4.One in the fourth or final year of his collegiate course at an American college; -- originally called senior sophister; also, one in the last year of the course at a professional schools or at a seminary. [1913 Webster]