okay Pristin sounds cool and they even have their own meaning!
Flash black to Seventeen. Pledis were like
“okay we have bunch of kids here.. how many do we have here?” “17 sir” “right, what should we call them?” “…Seventeen… sir?” “Brilliant! Seventeen it is!”
Few years later… 13 remains
“What are we going to do with Seventeen name without changing them?! David do the math! Anything with seventeen” “13ppl+3unit+1team=17 sir” “Spectacular! Great! Seventeen and oh dont forget to give this script to Seungcheol.”