The spelling of the word "jiggermast" is derived from its components: "jigger" and "mast." A jigger is a type of sail rigging used to control the shape and position of sails. A mast is a vertical spar used to support sails. Together, a jiggermast is a mast that supports the jigger sail. The IPA transcription for "jiggermast" is /ˈdʒɪɡər.mæst/ - with a stress on the first syllable and final syllable pronounced as "mæst."