Sephar

Concise Bible Dictionary:

A mountainous district, the boundary of the descendants of Joktan (Gen. 10:3030And their dwelling was from Mesha, as thou goest unto Sephar a mount of the east. (Genesis 10:30)). Probably Dhafar (pronounced Zafar) or Dhafari (pronounced Zafari) in Hadramaut, part of Southern Arabia.

Strong’s Dictionary of Hebrew Words:

Number:
5611 (find all occurrences in KJV Bible)
Transliteration:
Cphar
Phonic:
sef-awr’
Meaning:
the same as 5610; Sephar, a place in Arabia
KJV Usage:
Sephar

Jackson’s Dictionary of Scripture Proper Names:

enumeration: census

Potts’ Bible Proper Names:

Conspicuous; numbering; census:―a place in Arabia, Gen. 10:30. {Conspicuus}