reenforce

1 :  to strengthen by additional assistance, material, or support :  make stronger or more pronounced reinforce levees reinforce the elbows of a jacket reinforce ideas

2 :  to strengthen or increase by fresh additions reinforce our troops were reinforcing their pitching staff

3 :  to stimulate (a subject, such as an experimental animal) by reinforcement (see reinforcement 3); also :  to encourage (a response) by reinforcement

:  to seek or get reinforcements