is used by Ovid (Ov. Fast. 5.7) as an epithet of Hippocrene; its meaning however is not quite clear. It is derived from Agnippe, the well or nymph, and as Aganippides is used to designate the Muses, Aganippis Hippocrene may mean nothing but " Hippocrene, sacred to the Muses."
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890