Definition of unrig in US English:

unrig

verb

[with object]
  • Remove the rigging from (a ship).

    • ‘They sailed to the Island of Blanco, which is a low Island 30 leagues from the main of Spanish America, where he unrigged his Sloop.’
    • ‘Related services to stevedoring are the activities of rigging and unrigging of ship's gear, unlashing and lashing of cargoes, and securing cargo on board.’
    • ‘Mobs in Boston prevented the exportation of grain by unrigging the ship and dismantling its rudder.’

Pronunciation

unrig

/ˌənˈrɪɡ//ˌənˈriɡ/