jibsheet

From jib +‎ sheet.

jibsheet (plural jibsheets)

1. (nautical) The sheet (rope) used to control the jib (sail).
   • (Can we date this quote?), “RS Quest Rigging Instructions”, in California State University, Sacramento‎^[1], page 2:

     Release the line by pulling down and unfurl the jib by pulling on the two jibsheets.