bencher

Short definition from Wiktionary

Noun

1. 1
   A senior member of a law society in a Canadian province (except New Brunswick).
2. 2
   One of the senior governing members of an Inn of Court.
3. 3
   An alderman of a corporation.
4. 4
   A member of a court or council.
5. 5
   One who frequents the benches of a tavern; an idler.