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noun

decad

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Decad (noun) means an archaic form of decade (“period of ten years”).

noun
1
An archaic form of decade (“period of ten years”).
2
An archaic form of decade (“group of ten”).
3
A set of ten musical notes used to build harmonious chords.
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Etymology

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

Frequently asked questions

What is the meaning of decad?
"decad" (noun) means an archaic form of decade (“period of ten years”).
What are the different meanings of decad?
"decad" has 3 main meanings: 1. An archaic form of decade (“period of ten years”); 2. An archaic form of decade (“group of ten”); 3. A set of ten musical notes used to build harmonious chords.
Definitions from Wiktionary, CC BY-SA 4.0 · etymology from Wiktionary