† 1. An underground excavation. Obs.
1599. Hakluyt, Voy., II. 86. They put fire in the vndermines, weening to haue cast downe the wall.
1610. Holland, Camden’s Brit., I. 650. Under-mines or caves of very great widenesse.
1629. Descr. S’hertogenbosh, 36. We made an vndermine through the walls of the Towne.
† 2. A submerged mine. Obs.
1682. Roxb. Ball. (1885), V. 519. But thou, buoy’d up with Providence Divine, Shall float above, and fear no undermine.
3. An undermining movement.
1898. Daily News, 12 May, 8/4. The Bishop … said there was a very strong undermine of disloyalty to the Church.
