dec.

¹

abbreviation

1. (in prescriptions) pour off.

dec.

²

abbreviation

1. deceased.

2. decimeter.

3. declension.

4. decrease.

5. Music.,  decrescendo.

dec-

³

1. variant of deca- before a vowel.

   decathlon.

Dec.

⁴

abbreviation

1. December.

dec.

¹

abbreviation

1. deceased

2. music decrescendo

Dec

²

abbreviation

1. December

Word History and Origins

Origin of dec.¹

From the Latin word dēcantā

Example Sentences

GAF Energy will relocate its headquarters to Georgetown, Texas, on Dec. 13, the company announced in a notification document filed with state officials.

Read more on Los Angeles Times

Denny was born at the San Diego Zoo on Dec. 26, 2014, where he was raised by his mother, Jessica, and father, Paul Donn.

Read more on Los Angeles Times

Sanberg, according to the federal complaint filed against him, revised the spreadsheet to read as if it were from Dec. 31, 2019, and sent it to an investment advisor.

Read more on Los Angeles Times

Swift announced on her Instagram account that the first episodes of the docuseries — plus a Vancouver concert performance featuring the entirety of her 2024 album, “The Tortured Poets Department” — would be available on Disney+ on Dec. 12.

Read more on MarketWatch

The new rules would go into effect Dec. 1.

Read more on Barron's

When To Use

What does dec- mean?

Dec- is a combining form used like a prefix meaning “ten.” It appears in a small range of terms.Dec- comes from the Greek déka, meaning “ten.” The word December is related to this root via the Latin equivalent, decem. In fact, what is now the twelfth month of the year was once the tenth month of the early Roman calendar. Learn more at our entry for December.What are variants of dec-?Dec- is a variant of deca-, which loses its -a- when combined with words or word elements beginning with vowels. A similar prefix is deka-, which is reserved for the naming of metric units, and a related Latin-origin form is deci-, from Latin decimus, “tenth.”Want to know more? Check out our Words That Use articles for deca-, deci-, and deka-.