sumptio

ōnis, f.

sumo

I. a taking.
I. Lit., Vitr. 1, 2, 2.—
II. Trop., in logic, a premise taken for granted, an assumption: demus tibi istas duas sumptiones, ea quae λήμματα appellant dialectici; sed nos Latine loqui malumus, Cic. Div. 2, 53, 108.
Lewis & Short
A Latin Dictionary, 1879
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