Noah Webster
Compute
COMPUTE, verb transitive [Latin To lop or prune; to think, count, reckon; to cast up. The sense is probably to cast or throw together.]
1. To number; to count; to reckon; to cast together several sums or particulars, to ascertain the amount or aggregate. compute the quantity of water that will fill a vessel of certain dimensions, or that will cover the surface of the earth. compute the expenses of a campaign. compute the time by weeks or days.
2. To cast or estimate in the mind; to estimate the amount by known or supposed data.
3. To calculate.
COMPUTE, noun Computation. [Not used.]