tut-work

from The Century Dictionary.

• noun Work done by the piece.
• noun Specifically, in mining, any work which is paid for according to the number of fathoms sunk or run, or according to the amount actually accomplished, and not by the day or in tribute.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Mining) Work done by the piece, as in nonmetaliferous rock, the amount done being usually reckoned by the fathom.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun mining, archaic Work done by the piece, as in non-metalliferous rock, the amount done being usually reckoned by the fathom.