The Collaborative International Dictionary of English v.0.48:

Kilo \Ki"lo\, n.; pl. Kilos. [F.]
   An abbreviation of Kilogram.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Kilo- \Kil"o-\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.] Kilogram

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "kilo":
   G, M, carat, centigram, chiliad, chiliagon, chiliahedron,
   chiliarch, chiliarchia, decagram, decigram, dram, dram avoirdupois,
   dyne, force, grain, gram, grand, hundredweight, kilocycle,
   kilogram, kilohertz, kiloliter, kilometer, lakh, mass, megaton,
   millennium, millepede, milligram, milliliter, mole, myriad,
   one hundred thousand, ounce, ounce avoirdupois, ounce troy,
   pennyweight, pound, pound avoirdupois, pound troy, poundal,
   scruple, slug, stone, ten thousand, thou, thousand, ton,
   units of weight, weight, yard



The Jargon File (version 4.4.7, 29 Dec 2003):

kilo-
 pref.

    [SI] See quantifiers.


The Free On-line Dictionary of Computing (30 December 2018):

prefix
atto-
exa-
femto-
giga-
kilo-
mega-
micro-
milli-
peta-
pico-
tera-
yocto-
yotta-
zepto
zetta-

   1.  An SI prefix used to multiply the value of an SI
   (Système International) unit by some power of ten.

   2.  In mathematics or programming, a
   prefix operator is one that is written before its operand.  In
   a programming language using prefix notation, all operators
   are prefix operators.

   (2014-07-08)