Did You Know? A root word is the starting point of a word and you can add prefixes before the root and/or suffix after the root to create a new word. The root language of a numerical prefix need not be related to the root language of the word that it prefixes. decadence (n.) 1540s, "deteriorated condition, decay," from French décadence (early 15c. English words beginning with the prefix deca-. At LearnThatWord, every session is targeted, interesting, and made just for you. Word Forms. deca-: word element [Gr. Hover on a tile to learn new words with the same root. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Loading word forms. Decathlon definition is - a 10-event athletic contest; specifically : a composite contest that consists of the 100-meter, 400-meter, and 1500-meter runs, the 110-meter high hurdles, the javelin and discus throws, shot put, pole vault, high jump, and long jump. ], 1. ten; also spelled deka-. A numerical prefix lets you know how many there are of a particular thing. Start studying Deca, Deci Root Words. Loading roots. We check off words you know, so you … Meaning "process of falling away from a better or more vital state" is from 1620s. Word Roots. In certain classes of systematic names, there are a few other exceptions to the rule of using Greek-derived numerical prefixes. Here are some common numerical prefixes. Some words comprising numerical prefixes are hybrid words . A list of words that start with Deca (words with the prefix Deca). You want results, not busy work! Machine Translators. Examples. ), from Medieval Latin decadentia "decay," from decadentem (nominative decadens) "decaying," present participle of decadere "to decay," from Latin de-"apart, down" (see de-) + cadere "to fall" (from PIE root *kad-"to fall"). Pages in category "English words prefixed with deca- " The following 85 pages are in this category, out of 85 total. 2. used in naming units of measurement to indicate a quantity 10 times the unit designated by the root with which it is combined. Origin and root word information Verb conjugations Tutoring comments and trivia smart progress SMART progress. The metric symbol for deka- is da. deca- [DEK uh], dec-, deka-, dek- (Greek: ten; a decimal prefix used in the international metric system for measurements) In the metric [decimal] system, deka- is used to show whole units: ten [U.S.] and tenfold [U.K.]; 10 1 [10]. We search a large scrabble dictionary for scrabble words starting with deca - we take the letter or word you enter, and generate all words starting with Deca.In addition there is a list of Words that end with deca, words that contain deca.. Search for words that start with a letter or word: ... 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