involve

Concise Oxford English Dictionary © 2008 Oxford University Press:
involve/ɪnˈvɒlv/

▶verb

• 1 include as a necessary part or result.

  ■ cause to experience or participate in an activity or situation.

• 2 (be/get involved) be or become occupied or engrossed in something.

• 3 (be involved) be engaged in an emotional or personal relationship: Angela was involved with someone else.

– derivatives
involvement noun.

– origin ME (in the senses ‘enfold’ and ‘entangle’): from L. involvere, from in- ‘into’ + volvere ‘to roll’.