boxhaul

from The American Heritage® Dictionary of the English Language, 5th Edition.

• transitive verb To turn (a square-rigged ship) about on the heel by bracing the sails aback.

from The Century Dictionary.

• to veer (a ship) round on her heel when it is impracticable to tack.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb (Naut.) To put (a vessel) on the other tack by veering her short round on her heel; -- so called from the circumstance of bracing the head yards abox (i. e., sharp aback, on the wind).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb nautical To bring a square-rigged ship onto a new tack by hauling back the foresails whilst steering hard round