Boyd’s Bible Dictionary:
(mortar). A place east of the Dead Sea near Bozrah (Deut. 1:1).
Concise Bible Dictionary:
Place in the wilderness, mentioned only in Deuteronomy 1:1. Identified by some with et Tafileh, a very fertile region, south-east of the Dead Sea, 30° 56' N, 35° 37' E.
Strong’s Dictionary of Hebrew Words:
Meaning:
from the same as 8602; quagmire; Tophel, a place near the Desert
Jackson’s Dictionary of Scripture Proper Names:
unseasonable
Potts’ Bible Proper Names:
A murmuring; ruin; decay; foolishness; quagmire:―place near the desert, Deut. 1:1. {Murmuratio}