Third-person singular present tense of energize (American spelling); gives energy, power, or enthusiasm to.
From energize (American form of energise) with regular third-person singular -s suffix. American -ize spelling is maintained in conjugation.
When American English speakers write 'energizes,' they're unconsciously making a spelling choice that reflects 18th-century debates between Noah Webster and British standardizers—tiny letters carrying big historical arguments.
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