"Blend of Jas and Lyn"
The name Jaslin is commonly a female name from the "American" origin.
Jaslin is a modern American girls' name with no documented etymology in older naming traditions. Its form matches names such as Jazlyn and Jaslyn, built from the Jas- element found in Jasmine combined with the -lyn or -lin ending that became common in American girls' names in the late twentieth century. That reading rests on the name's spelling and on the later names it resembles, not on a recorded root.
The pronunciation of Jaslin is JAZ-lin.