Time for another awesome word, that probably everybody knows...got to be among my favorites words because of the meaning mostly..though the pronunciation isn't bad either.

Source

insidious

/ɪnˈsɪdɪəs/

Let's hear it.

Thanks to Emma Saying for the pronunciation.

What does it mean?

According to the dictionaries:

-it means causing harm (sometimes even deadly) in a subtle, gradual manner synonym with "stealthy", "deceitful", even "sneaky".

Origin

First known use ,appears to be in 1545. It comes from Latin īnsidiōsus meaning "cunning, artful, deceitful", from īnsidiae meaning "a lying in wait, an ambush".

I'll leave you guys with one of my favorite quotes by Samuel P. Huntington:

"Partial truths or half-truths are often more insidious than total falsehoods."

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Sources:
http://www.oxforddictionaries.com/definition/english/insidious
http://www.merriam-webster.com/dictionary/insidious
https://en.wiktionary.org/wiki/insidious
https://www.youtube.com/

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