custos

plural custodes

1. obsoleteA warden.

   Mr. Tharp, the Custos of the parish, and several other gentlement, accompanied the corps.

   1803, Robert Charles Dallas, The History of the Maroons, London: Longman and Rees, Volume 1, Letter 5, p. 148

   1 more example

   […] they were commytted to prison & put out of theyr offyces & the Constable of the Towre made custos of the citye.

   c. 1530, John Rastell, The Pastyme of People: The Cronycles of Dyuers Realmys, London

2. CatholicismA monastic superior, who, under the general of his order, has the direction of all the religious houses of the same fraternity in a given district, called a custody of the order.
3. historicalentertainmentIn older forms of musical notation, an indication, at the end of a line of music, of the first note of the next line.