The name Amaranta is a girl's name of Spanish, Italian origin meaning "unfading". Amaranta and discussed in our forums with posts like "Names on NB that make you go WOW!".
From the experts:
Amaranta is the unusual and intriguing Latinate form of the Greek botanical name Amarantha, which connects to an eternal mythical figure. An excellent choice for the parent who wants an A name but wishes to move beyond the usual complement of names from Amelia to Annabel.