from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Chiefly British An elderly woman.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An old woman.
from the GNU version of the Collaborative International Dictionary of English
- n. An old wife; an old woman; -- correlative of
gaffer, an old man.
from The Century Dictionary and Cyclopedia
- n. An old woman: the correlative of gaffer.
Probably alteration (influenced by grandmother) of godmother.(American Heritage® Dictionary of the English Language, Fourth Edition)
Reduction of godmother or grandmother. (Wiktionary)