Noah Webster's Dictionary (n.) That part of a human being or quadruped, which extends on either side of the spinal column between the hip bone and the false ribs. In human beings the loins are also called the reins.

Multi-Version Concordance Loin (2 Occurrences) Genesis 3:7 The eyes of both of them were opened, and they knew that they were naked. They sewed fig leaves together, and made themselves aprons. (See NAS) Judges 8:30 and to Gideon there have been seventy sons, coming out of his loin, for he had many wives; (YLT)