boatswain

• bosun, bo'sun, boson, bos'n, bo's'n

From Middle English botswain, botswein, bote-swayn, from late Old English bātsweġen, from bāt (“boat”) + sweġen (“swain”), the latter element a borrowing from Old Norse sveinn (“boy”); equivalent to boat +‎ swain (“boy, servant”).^[1]

• IPA^(key): (UK) /ˈbəʊ.sən/, (spelling pronunciation) /ˈbəʊt.sweɪn/

• Audio (Southern England):

  (file)

• (US, Canada) IPA^(key): /ˈboʊ.sən/
• Rhymes: (UK) -əʊsən, (US, Canada) -oʊsən

boatswain (plural boatswains)

1. (nautical) The officer (or warrant officer) in charge of sails, rigging, anchors, cables etc. and all work on deck of a sailing ship.
2. (nautical) The petty officer of a merchant ship who controls the work of other seamen.
3. A kind of gull, the jaeger.
4. The tropicbird.

• 1610–1611 (date written), William Shakespeare, “The Tempest”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act I, scene i], page 1:

  Alon. Good Boteſwaine haue care : where's the Maſter ? […]

• boatswain-bird
• boatswain's call
• boatswain's chair
• boatswain's mate
• boatswain's pipe