Acacia

Acacia is a flower name. The origin and meaning of the name are not certain. One possible origin is the Greek word ake, which means "point," and refers to thorns. Another possible origin is the Greek word kakos, meaning "bad," combined with the Greek prefix a, meaning "not." The idea here is that the resulting word, akakos, referred to the flower's ability to ward away evil, or "bad." Where names are concerned, Acacia is usually taken to mean "thorny," but there's no good reason why it couldn't be taken to mean "sharp," and used for a little girl who's expected to be one smart cookie.