One of the mysteries of the English language finally explained.
1Ground which is more elevated in relation to the surrounding area.
2Figurative and in figurative contexts, especially with reference to a position of advantage or superiority in a debate, moral issue, etc.
Mid 16th century; earliest use found in Richard Morison (c1510–1556), humanist and diplomat. From higher + ground.
higher ground/ˌhʌɪə ˈɡraʊnd/
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