In the Prose Edda, the phrase occurs here.

Hvergelmir is mentioned several times in the Prose Edda.

In the Prose Edda, she is additionally described as the wife of Glenr.

Borr is not mentioned again in the Prose Edda.

In the Prose Edda, no mention of threats is made.

The sources for these stanzas are not provided in the Prose Edda or elsewhere.

The only extended myth related about Freyr in the Prose Edda is the story of his marriage.

The information there is largely consistent with that of the Prose Edda while each collection has some details not found in the other.

According to the Prose Edda, Hœnir is said to have given reason to man.

Although her name is mentioned in The Prose Edda it gives no direct powers or other info.