"Form of Misty"
The name Mistee is commonly a female name from the "English" origin.
Mistee is a phonetic respelling of Misty, with -ee standing in for the final -y, a substitution that appears in other American respellings such as Sandee for Sandy and Bobbie for Bobby. Misty is taken from the English adjective misty, meaning covered with mist or hazy. The spelling Mistee adds no new meaning to the name.
Misty means "Covered With Mist, Dew".
The pronunciation of Mistee is MIS-tee.