Hecuba

έκανα in Greek, means "reserved" like reserved a table or put aside for. So she may have been named this and it got changed by time or to sound cute. I can see a royal bride being reserved for the king, i.e. "the one reserved for the king" was my first thought hearing the name.

Hecuba was a Queen of Troy and wife to Priam. She was mother to various children including the Trojan heroes Paris and Hector and the prophetess Cassandra [noted -ed]. One interesting fact of note is her connection to Hecate. Though modernly known as a goddess of witchcraft, Hecate (Hekate, Ετακη) was originally a Titan (the only one who sided with the Olympians during the events of the Titanomachy; she was also deeply respected and worshiped by Zeus and the other Olympians) and had even further roots as an ancient Thracian divinity and had worshipers in Anatolia, primarily in (Lagina) Caria and Phrygia. Though there are various tellings of what happened, she (Hecuba) was eventually turned into a dog (often a black dog) and became Hecate's familiar/companion, which helped give rise to the concept of Hecate being associated with dogs, particularly black, female dogs.