Here is Pausanias’s account on the hermaphrodite deity Agdistis:
http://www.perseus.org/cgi-bin/ptext?lookup=Paus%2e+7%2e17%2e10
According to this account,
http://www.perseus.org/cgi-bin/ptext?doc=Perseus%3atext%3a1999%2e04%2e0062&query=id%3drhea#id,rhea
Agdistis got his/her name from a holy rock named Agdus upon Mount Dindymus. "Agdus" is most likely derived from the adverb "agden" which is related to the verb "ago" meaning "to lead or carry, to convey."
Hope this helps your research!