4688  mtsowlah  mets-o-law'

 or mtsolah {mets-o-law'}; 
also mtsuwlah {mets-oo-law'}; 
or mtsulah {mets-oo-law'}; 
from the same as 6683; a deep 
place (of water or mud):--
bottom, deep, depth.

 see HEBREW for 06683