English Lexicon

Swear-By

/ˈswɛr.baɪ/
verbCEFR B2 (Upper)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As verb
  1. 1

    To express strong belief in the reliability or effectiveness of something.

    "Many people swear by this herbal remedy for headaches."
  2. 2

    To make a solemn declaration of trust or faith in something.

    "He swears by his morning routine for maintaining productivity."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'swear-by' originates from the combination of 'swear', derived from Old English 'sweoran', meaning to make a solemn declaration, and 'by', a preposition indicating reliance or trust. The phrase has evolved to express strong belief or trust in something or someone, particularly in informal contexts.

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