This etymology became widely accepted after it was endorsed by Georg Wissowa.Juno is the equivalent to Hera, the Greek goddess for love and marriage. Ancient etymologies associated Juno's name with iuvare, "to aid, benefit", and iuvenescendo, "rejuvenate", sometimes connecting it to the renewal of the new and waxing moon, perhaps implying the idea of a moon goddess.
In Rome she was since the most ancient times named Lucina, Mater and Regina.
The view that she was also a Moon goddess though is no longer accepted by scholars, as such a role belongs to Diana Lucifera: through her association with the moon she governed the feminine physiological functions, menstrual cycle and pregnancy: as a rule all lunar deities are deities of childbirth.
These aspects of Juno mark the heavenly and worldly sides of her function.
Other think her military and poliadic qualities arise from her being a fertility goddess who through her function of increasing the numbers of the community became also associated to political and military functions.
Part of the following sections is based on the article by Geneviève Dury Moyaers and Marcel Renard "Aperçu critique des travaux relatifs au culte de Junon" in Aufstieg und Niedergang der Römische Welt 1981 p. The rites of the month of February and the Nonae Caprotinae of July 5 offer a depiction of the interrelated roles of the deity in the spheres of fertility, war, and regality.