About the name Merce
Merce belongs to the Spanish 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, Merce first appears in Social Security records in 1927. It climbed to its best-ever rank of #5359 in 1927, and in 2024 0 babies received the name — 5 in total since 1880. Those are the official counts, not estimates.