It turns out that derig is better known than I thought. Three players have said they recognize it as (in Collins’ definition)
Brit. 1. n. The removal of equipment or rigging. 2. vt. to remove equipment or rigging from (a ship, stage set, etc).
So I’m proposing a substitute word,
and setting a new deadline: Sunday 28 November 09h30 CET. That is 48 hours from time of posting.