From Wiktionary, the free dictionary
commadore (plural commadores)
- Obsolete form of commodore.
1713, Sir George Rooke, The Life and Glorious Actions of the Right Honourable Sir G. Rook, page 10:The Commadore put to Sea, and endeavour'd all that possibly he could to get Southward, but was forced by bad Weather into Bangor Bay, […]