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- verb Simple past tense and past participle of
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The Store's representative also seriously undercalculated the time it would take to roof the building, considering the time of year and the total square footage of the project.
The Store Little, Bentley 1998
I saw I had rather undercalculated our distance, or over-done the dynamite and powder, which you please.
Island Nights' Entertainments Robert Louis Stevenson 1872