dec.

¹

abbreviation for

1. (in prescriptions) pour off.

dec.

²

abbreviation for

1. deceased.
2. decimeter.
3. declension.
4. decrease.
5. Music. decrescendo.

dec-

³

1. variant of deca- before a vowel:

   decathlon.

Dec.

⁴

abbreviation for

1. December.

dec.

¹

abbreviation for

1. deceased
2. music decrescendo

Dec

²

abbreviation for

1. December

Word History and Origins

Origin of dec.¹

From the Latin word dēcantā

Example Sentences

The production will close Dec. 8 after 24 preview and 29 regular performances, Broadway World reported.

From Los Angeles Times

“We can't go past Dec. 31,” which is when most major ag programs authorized under the bill would lapse, he said.

From Salon

Austin Reaves direct messaged Knecht on Dec. 23.

From Los Angeles Times

But at a Dec. 7 council meeting, employees of the medical offices turned out to decry the project, saying they already felt unsafe because of the number of homeless people in the area.

From Los Angeles Times

Discovery’s streaming service Max on Dec. 20, adding to the controversy over the limited theatrical run for what could be the storied star and filmmaker’s final movie.

From Los Angeles Times

Words That Use Dec-

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-.

Examples of dec-

An example of a term you may have come across that features dec- is decade, “a period of ten years.” Decade comes from the Greek dekad-, which features the equivalent of the form dec-.

The form dec- means “ten,” as we have seen. The suffix -ade has various meanings, including denoting “a group or unit comprising a certain number, sometimes of years.” Decade literally translates to “a group of ten [years].”

What are some words that use the combining form dec-?

• decandrous
• decathlon
• decennary (using the equivalent form of dec- in Latin)
• decennium (using the equivalent form of dec- in Latin)

What are some other forms that deca- may be commonly confused with?

• dactylo-
• de-
• deci-
• deka-
• dextro-
• dodeca-

Not every word that begins with the letters dec-, such as decadence or decapitate, is necessarily using the combining form dec- to denote “ten.” Learn why decadence is related to “decay” at our entry for the word.

Break it down!

A biathlon is an athletic contest comprising two different events, typically skiing and shooting. A triathlon is an athletic contest comprising three different events. In keeping with this pattern, what is a decathlon?