Webster's Revised Unabridged Dictionary · 1913

Compute

Compute (kom*pūt") , transitive verb

[Latin computare. See Count, transitive verb]

To determine by calculation; to reckon; to count.
Two days, as we compute the days of heaven. — Milton
What's done we partly may compute, But know not what's resisted. — Burns

Compute , noun

[Latin computus: compare French comput.]

Computation. [Rare] — Sir T. Browne