Floccinaucinihilipilification, the declaration of an item being useless, is the longest non-medical term in the English language.
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The Danish word for condom is 'svangerskabsforebyggendemiddel'.
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"Goodbye" came from "God bye" which came from "God be with you."
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The equivalents of the English saying "That's Greek to me" are "This appears to be Spanish" (German), "This is Chinese to me" (Dutch), "It's German to me" (Philippines), "It's Hebrew" (Finnish), "It's Chinese to me" (Hebrew), "Sounds like Mars language/These are chicken intestines" (China).
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Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
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Pokémon is Japanese for Pocket Monsters and Chinpokomon (the South Park parody) is Japanese for Penis Monsters.
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