noun

• (Quakerism) A facilitator of a Quaker meeting for business affairs.
• (archaic) In the Church of England, the layman that assists in the church service, especially in reading the responses (also called parish clerk and Bible clerk).
  "God save the King! Will no man say, amen? / Am I both priest and clerk? Well then, amen."
• (dated) A cleric or clergyman (the legal title for clergy of the Church of England is "Clerk in Holy Orders", still used in legal documents and cherished by some of their number).
• (obsolete) A scholar.
  "13th century, Traditional carol, And all was for an appel, an appel that he toke/As clerkès finden written in their boke."

verb

• (medicine) To assemble information about a patient during their initial assessment by actions such as a taking a detailed medical history and performing a physical examination.
  "The best preparation for the long case is to clerk patients on the wards and in outpatients within a strict 60 minutes. This would include deciding on a policy of management."