"Blend of Ja and Alexis"
The name Jalexis is commonly a female name from the "American" origin.
Jalexis is a modern American formation that joins the Ja- prefix, the element behind names such as Jalen and Jayden, to the established given name Alexis. It first appears in United States birth records in 1990, which fits a formed name of this kind rather than an older tradition, and it carries no inherited meaning from a documented language.
The pronunciation of Jalexis is juh-LEK-sis.