A "sekirei" is the Japanese wagtail bird. In Japanese mythology, this bird is sacred to the creation gods Izanagi and Izanami, and is sent to earth to make habitable and fertile lands and to enable couples to procreate.
In general, each Sekirei is named after descriptions of traits that suit them.
Uzume is named after the Japanese god of dawn and mirth, which fits with her cheerful nature.
The series is based on Sakurako Gokurakuin's manga series of the same name, which launched in Square Enix's Young Gangan in 2004. The manga ended in August 2015. Yen Press began releasing the manga digitally in November 2015, and will publish the eighth volume digitally on January 31.
FUNimation Entertainment announced on Sunday January 22, 2017 that its streaming and home video license for the Sekirei and Sekirei: Pure Engagement anime series will expire on February 9, 2017.