Quick answer
Evadne is a girl name.
Meaning and history
From Greek Εὐάδνη (Euadne), from εὖ ( eu ) meaning "good" possibly combined with Cretan Greek ἀδνός ( adnos ) meaning "holy". This name was borne by several characters in Greek legend, including the wife of Capaneus. After Capaneus was killed by a lightning bolt sent from Zeus she committed suicide by throwing herself onto his burning body.
Notes and context
Usage: greek mythology | Ancient Greek: Εὐάδνη