One of the mysteries of the English language finally explained.
A pair of people or things.
two, couple, duo, duology, brace, twosomeView synonyms
- ‘Note that the pairs (0,3) and (4,8) form a duad.’
- ‘Each of the 45 circles is denoted by an unordered pair of duads.’
- ‘The duad has been generated from the monad, according to Pythagoras.’
- ‘Whether the root be a perfect monosyllable, or a duad, or even triad, formed on the monosyllable, it is the same thing with respect to the origin of the root.’
- ‘The figures of the duad are the Son, who is the splendor of the Father, and the Word, which is the form of thought.’
Mid 17th century: from Greek duas, duad- ‘two’, probably influenced by Latin duo.
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