Juno

From Middle English Juno, from Latin Iūnō of uncertain origin. One hypothesis is derivation from Proto-Indo-European *dyúh₃onh₂- (“she of heavenly authority”), from *dyew- (“sky, heaven”) + *-Hō (“burden, authority”), reflecting her role as goddess of rulers. Another is derivation from Proto-Indo-European *h₂yúh₃onh₂- (“the young goddess”), from *h₂eyu- (“long time, lifetime”) + *-Hō (“burden, authority”), making it cognate with Latin iuvenis (“young”). Both would have produced the unattested early Latin form *Iuvō, declined with the root Iūn- and eventually normalized to Iūnō.