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2. dis- ·- a prefix from ·gr. di`s- twice. ·see di-.
3. dis- ·- a prefix from the latin, whence f. des, or sometimes de-, 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, ·eng. two. ·see two, and ·cf. bi-, di-, dia-. dis-denotes separation, a parting from, as in distribute, disconnect; hence it often has the force of a privative and negative, as in disarm, disoblige, disagree. also intensive, as in dissever.