"Blend of Bren and Lee"
The name Brenlee is commonly a female name from the "English" origin.
Brenlee is a modern American formation that joins a Bryn- or Bren- first element, as in Brynlee and Brinley, with the -lee ending that is common in US girls' names from the 1990s onward. It belongs to that group of spellings rather than to an older naming tradition, and no earlier use of the name in another language is recorded.
The pronunciation of Brenlee is BREN-lee.