IPA: /rɪˈstrɛŋθən/
KK: /rɪˈstrɛŋθən/
To make something strong again or to increase its strength once more.
After the storm, the community worked together to restrengthen the damaged buildings.
Past: restrengthened
Past Participle: restrengthened
Restrengthen → It is formed from "re-" (meaning again) and "strengthen" (from Old English "strengthen", meaning to make strong). The word "restrengthen" means to make strong again or to restore strength.
Think of 'again' ('re-') and 'making strong' ('strengthen') — that's why restrengthen means to make something strong again.