Thick clay
Easton’s Bible Dictionary & Webster’s 1828 Dictionary · Matthew George Easton, Noah Webster
Thick clay - (Easton's Bible Dictionary)
(Hab. 2:6) is correctly rendered in the Revised Version "pledges." The Chaldean power is here represented as a rapacious usurer, accumulating the wealth that belonged to others.
Source of the article
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
Bible Strong combined digital edition