Kilo-

prefix

Definitions

Prefix
  1. 1
    In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by a thousand (1000). morpheme
  2. 2
    Synonym of kibi- (“multiplying the unit to which it is attached by 2¹⁰ = 1024”). morpheme, proscribed

Etymology

From French, kilo- irregularly derived from Ancient Greek χίλιοι (khílioi, “one thousand”). The etymologically "correct" form would be chili- or chilo-, resulting in forms such as chiliasme (“chiliasm”) or chilopode (“centipede”); but the French, when creating the prefix, had to avoid a possible (standard) pronunciation of chi as /ʃi/, too close to the vulgar verb chier.

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