Zillah, of Hebrew origin, means 'shadow' and is often associated with themes of darkness and mystery. It is rarely encountered today, lending it an air of uniqueness and intrigue.
The name Zillah saw a significant rise in popularity during the late 19th and early 20th centuries, with peaks around the years 1886-1894 and again from 1914 to 1923. However, it appears to have fallen out of favor thereafter, with only occasional resurgences in popularity in recent decades, such as in 2016 and 2021.