Webster's Revised Unabridged Dictionary · 1913

Calculate

Calculate , intransitive verb

[L, calculatus, past participle of calculate, from calculus a pebble, a stone used in reckoning; hence, a reckoning, from calx, calcis, a stone used in gaming, limestone. See Calx.]

1.
To ascertain or determine by mathematical processes, usually by the ordinary rules of arithmetic; to reckon up; to estimate; to compute.
A calencar exacity calculated than any othe. — North
2.
To ascertain or predict by mathematical or astrological computations the time, circumstances, or other conditions of; to forecast or compute the character or consequences of; as, to calculate or cast one's nativity.
A cunning man did calculate my birth. — Shakespeare
3.
To adjust for purpose; to adapt by forethought or calculation; to fit or prepare by the adaptation of means to an end; as, to calculate a system of laws for the government and protection of a free people.
[Religion] is... calculated for our benefit. — Abp. Tillotson
4.
To plan; to expect; to think. [Local, United States]

Calculate , intransitive verb

To make a calculation; to forecast consequences; to estimate; to compute.
The strong passions, whether good or bad, never calculate. — F. W. Robertson