The name Yunalesca is primarily a female name of Japanese origin that means Night + Sea Hibiscus.
Lady Yunalesca is a character from the video game, Final Fantasy X. Tetsuya Nomura, who designed the character Yunalesca, said that
her dress and necklace contain images of the "Sea Hibiscus" flower, also
called Yuuna. He also said that her name carries the meaning of “night” in
Okinawan.