conclude

Concise Oxford English Dictionary © 2008 Oxford University Press:
conclude/kənˈkluːd/

▶verb

• 1 bring or come to an end.

  ■ formally settle or arrange (an agreement).

• 2 arrive at a judgement or opinion by reasoning.

– origin ME (in the sense ‘convince’): from L. conclus-, concludere, from con- ‘completely’ + claudere ‘to shut’.