circumference
2 occurrences across the corpus
1 Enoch
1 Enoch 14:18
The appearance of which was like that of frost; while its circumference resembled the orb of the brilliant sun; and _there was_ the voice of the cherubim.
OT Pseudepigrapha
The Letter of Aristeas 5:2
It is about forty furlongs [*1] in circumference, as far as one could conjecture.