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kilo-
Prefix
"thousand"
19th cent. Borrowed from French kilo- 'id.,' itself borrowed from Ancient Greek χίλιοι (khílioi) 'id.'
From Proto-Indo-European *ghes-lo- "thousand," "a great number." The same root as mil.
Indo-European:
Indo-Iranian: Sanskrit sahásra- "thousand," Avestan hazaŋra- 'id.'
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| kilómetro m. (Noun) "kilometer" 19th cent. A thousand meters. From kilo- "thousand" and metro. |