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A prefix from Latin de down, from, away; as in debark, decline, decease, deduct, decamp. In words from the French it is equivalent to Latin dis- apart, away; or sometimes to de. Cf. Dis-. It is negative and opposite in derange, deform, destroy, etc. It is intensive in deprave, despoil, declare, desolate, etc.…

A prefix, from Gr. de`ka, signifying ten; specifically (Metric System), a prefix signifying the weight or measure that is ten times the principal unit.

An address to a patron or friend, prefixed to a book, testifying respect, and often recommending the work to his special protection and favor.

A prefix signifying ten. See Deca-.

A prefix, signifying half.

A word formed from another word, by a prefix or suffix, an internal modification, or some other change; a word which takes its origin from a root.

A prefix which formerly properly indicated the second in a regular series of compound in the series, and not to its composition, but which is now generally employed in the same sense as bi- or di-, although little used.

A prefix, from L. dexter, meaning, pertaining to, or toward, the right; (Chem. & Opt.)

A prefix, signifying twofold, double, twice; (Chem.)

A prefix denoting through; also, between, apart, asunder, across. Before a vowel dia- becomes di-; as, diactinic; dielectric, etc.

A prefix or combining form of Diamine.

A prefix from the Latin, whence F. dés, or sometimes dé-, dis-. The Latin dis- appears as di- before b, d, g, l, m, n, r, v, becomes dif- before f, and either dis- or di- before j. It is from the same root as bis twice, and duo, E. two. See Two, and cf. Bi-, Di-, Dia-. Dis- denotes separation, a parting from, as in dis…

Lady; mistress; madam; -- a title of respect used in Spain, prefixed to the Christian name of a lady.

An inseparable prefix, fr. the Greek ill, bad, hard, difficult, and the like; cf. the prefixes, Skr. dus-, Goth. tuz-, OHG. zur-, G. zer-, AS. to-, Icel. tor-, Ir. do-.

A Latin prefix meaning out, out of, from; also, without. See Ex-.

A prefix or combining form signifying pertaining to electricity, produced by electricity, producing or employing electricity, etc.; as, electro-negative; electro-dynamic; electro- magnet.

A prefix. See En-.

A prefix signifying in or into, used in many English words, chiefly those borrowed from the French. Some English words are written indifferently with en- or in-. For ease of pronunciation it is commonly changed to em- before p, b, and m, as in employ, embody, emmew. It is sometimes used to give a causal force, as in en…

A prefix signifying within. See Ento-.

A prefix signifying between, among, part.