While the name of the goddess appears in Bede's Latin manuscript as Rheda, it is reconstructed into Old English as *Hrēþe and is sometimes modernly anglicized as Hretha (also "Hrethe" or "Hrede").
In chapter 15 of his work De temporum ratione, Bede provides information about English months and celebrations.
Bede records that Hrēþmōnaþ is analogous to March, and details that "Hrethmonath is named for their goddess Hretha, to whom they sacrificed at this time" (Rhed-monath a Dea illorum Rheda, cui in illo sacrificabant, nominatur…).
Grimm proposes a connection between *Hrēþe and the Old High German female personal name Hruada.
"[1] David Raoul Wilson comments that while "Bede gives us no clues as to the rituals involved during Rhedmonath and Eosturmonath, it is reasonable to assume that they related to the beginning of spring, the new growing season, and fertility.