Celebrity baby names: Delta
Apparently, Kristen and her husband Dax got the idea for the name of their youngest from a text message: 'Dax's friend texted, "Are you going to pick another (expletive) name, like 'Delta Force?'" Dax went, "Ooh! Delta!"', the actress told Good Housekeeping.
Delta is a letter of the Greek alphabet, but also means 'mouth of the river'.