What is "unrigging"

Usage examples of "unrigging".

Bolitho glanced at the nearest gangway where a boatswain’s mate was supervising the unrigging of a grating.

For example, there was little inclination to bring decks to a very high pitch of cleanliness when it was known that they would soon be desecrated by dockyard maties in hob-nailed boots, stripping and unrigging the barky and laying her up in ordinary: this and a thousand other things led to short answers, ill-will, and sullen looks, though to no deliberate insolence or failure to obey orders - not even the first smell of mutiny.