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present participle and gerund of prop examples
plural proppings
The act by which something is propped. quotations examples
By certain arrangements in the former method the miner not only gets the coal but makes all proppings and repairs, so that the face moves much more slowly than with the other method where the hewers devote all their time to getting the coal […]
1904, Kellogg Durland, Among the Fife Miners, page 62
Englia