The root "dem-", as in "democracy", is of Greek origin, from demos "the people". Latin derived words that appear to contain this root are from either:
People
Dem, in Greek, means "People" Words including "Dem" are: Democrat, Demograph, Epidemic, Democracy, Demographer and Pandemic. Hope I was of some assitance!
The words "arachnid" and "arachnophobia" have the Latin root "arachn," which relates to spiders.
Words with the Latin root "civis" include civilization, civic, civilian, and civility.
Some words with the Latin root word "habere" include habit, inhabit, exhibit, and prohibit. The root "habere" means "to have" or "to hold."
Words with the Latin root "noxa" meaning injury include "noxious," "innocuous," and "nocturne."
Some words with the Latin root "arbiter" include "arbitration," "arbitrary," and "arbiter." These words all stem from the Latin word "arbiter," meaning "witness" or "judge."
The Latin root to turn is vertere.We see it in words such as divert, convert, revert ... and also verse and aversion.
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Some words with the Latin root "art" include artifact, artisan, artifice, and artificial.
"Cautious," "caution," "cauterize," "cautery," and "cauterize" are words that have the Latin root "caut."