Words that come from Proto-Indo-European “oḱtṓw”

400 words across 111 languages descend from Proto-Indo-European oḱtṓw — including eight, October, eighteen, octave, Octavia, Octavius, octavo, ag.

See the etymology of oḱtṓw itself →

English (55)

Catalan (24)

Latin (23)

Italian (22)

Armenian (20)

Dutch (19)

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Telugu (9)

Czech (8)

Icelandic (7)

German (7)

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Haitian Creole (1)

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Belarusian (1)

Proto-Slavic (1)

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Upper Sorbian (1)