Stope

Webster's Dictionary of the English Language

·vt To excavate in the form of stopes.

II. Stope ·p.p. ·Alt. of Stopen.

III. Stope ·vt To fill in with rubbish, as a space from which the ore has been worked out.

IV. Stope ·vi A horizontal working forming one of a series, the working faces of which present the appearance of a flight of steps.