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dec-
(DEK)ten
Latin and Greek both use dec for ten. A decade is ten years; a decathlon is a ten-event contest.
prefixGreek & Latin
Number & quantitySpellings:decdeca
Example words
decade
ten years
decathlon
a contest with ten events
decimal
a number system based on ten
Common Core alignment
Grades served: 5, 6
- L.5.4bUse common, grade-appropriate Greek and Latin affixes and roots as clues to the meaning of a word (e.g., photograph, photosynthesis).
- L.6.4bUse common, grade-appropriate Greek or Latin affixes and roots as clues to the meaning of a word (e.g., audience, auditory, audible).
Number & quantity. Roots that count, measure, and tell you how many.
Browse all number & quantity roots →L.5.4bL.6.4b