About the name Yui
Yui belongs to the Japanese 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, Yui first appears in Social Security records in 1989. It climbed to its best-ever rank of #4528 in 2016, and in 2024 22 babies received the name — 554 in total since 1880. Those are the official counts, not estimates.