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Strengthen

/ˈstrɛŋθ(ə)n/

To make something more powerful, effective, or resistant to force.

Synonyms:

Each wicked deed strengthens the next to come.Muscles can be strengthened over time.It drowned their fire, but it has strengthened mine.

Derived from Middle English strengthnen, from the noun strength, around 12th century. It combines strength with the verbalizing suffix -en.

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