About the name Nannie
Nannie belongs to the English & American tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess.
In the United States, Nannie first appears in Social Security records in 1880. It climbed to its best-ever rank of #86 in 1882, and in 2024 0 babies received the name — 25,560 in total since 1880. Those are the official counts, not estimates.