Hendiadys

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Hendiadys (/hɛnˈdaɪ.ədɪs/) is a figure of speech used for emphasis—"The substitution of a conjunction for a subordination". The basic idea is to use two words linked by the conjunction "and" instead of the one modifying the other.

Hendiadys in English is also known as two for one and figure of twins. Although the underlying phrase is Greek: ἓν διὰ δυοῖν, romanized: hen dia duoin, lit. 'one through two', the only other forms occasionally found in English are '''hendiaduo''' and '''hendiaduous''', the latter of which the 17th-century English Biblical commentator Matthew Poole used in his commentary on Genesis 3:16, Proverbs 1:6, and Isaiah 19:20.^[1]