sergeant vs serjeant-at-law

sergeant

noun
  • A lawyer of the highest rank, equivalent to the doctor of civil law. 

  • A fish, the cobia. 

  • A title sometimes given to the servants of the sovereign. 

  • A bailiff. 

  • The highest rank of noncommissioned officer in some non-naval military forces and police. 

  • UK army rank with NATO code OR-6, senior to corporal and junior to warrant officer ranks. 

  • Any of various nymphalid butterflies of the genus Athyma; distinguished from the false sergeants. 

  • A servant in monastic offices. 

serjeant-at-law

noun
  • A member of an order of barristers at the English and Irish Bar, who for many centuries had exclusive jurisdiction over the Court of Common Pleas. 

How often have the words sergeant and serjeant-at-law occurred in a corpus of books? (source: Google Ngram Viewer )