calculate

Concise Oxford English Dictionary © 2008 Oxford University Press:
calculate/ˈkalkjuleɪt/

▶verb

• 1 determine mathematically.

• 2 (calculate on) include as an essential element in one's plans.

• 3 intend (an action) to have a particular effect.

• 4 US dialect suppose.

– derivatives
calculative adjective.

– origin ME: from late L. calculat-, calculare ‘count’, from calculus ‘a small pebble (as used on an abacus)’.