"Heofonum" is an Old English word, the dative plural of "heofon," meaning "heaven." In Modern English, we typically use "Heavens" to refer to the sky or the abode of God.
It's important to note that "Heavens" can also be used in a more general sense, like "for heaven's sake" or "good heavens!" However, in the context of "Heofonum," the most accurate translation is Heavens.