Decad

//ˈdɛkæd// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Archaic form of decade (“period of ten years”). alt-of, archaic

    "Since Averill was a decad and a half / His elder, and their parents underground"

  2. 2
    Archaic form of decade (“group of ten”). alt-of, archaic

    "Plato […] extends number as far as to the decad."

  3. 3
    A group of ten notes from which the consonant triads may be constructed

Synonyms

All synonyms
zehnbein

Example

More examples

"Since Averill was a decad and a half / His elder, and their parents underground"

Etymology

Doublet of decade and dekad. By surface analysis, dec- + -ad.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.