Definition
A serjeant-at-law (also spelled sergeant-at-law) was a senior barrister in England. This was a historically important rank in the legal profession. They had exclusive rights to plead in the Court of Common Pleas. The rank was above ordinary barristers but below judges. It was abolished in the 19th century, so it is no longer a current legal title. They are like the ancient equivalent of a very specialized lawyer.