About the name Delta
Delta 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, Delta first appears in Social Security records in 1883. It climbed to its best-ever rank of #723 in 1893, and in 2024 82 babies received the name — 4,289 in total since 1880. Those are the official counts, not estimates.