Word Study
kilo-
CIDE DICTIONARY
kilo-, pref. [F. kilo-. See Kilogram.].
A combining form used to signify thousand in forming the names of units of measurement; as, kilogram, kilometer, kilowatt, etc. [Webster 1913 Suppl.]
OXFORD DICTIONARY
kilo-, comb. form denoting a factor of 1,000 (esp. in metric units).
Usage
Abbr.: k, or K in Computing.
Etymology
F f. Gk khilioi thousand
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