Civil
civ- is a root word. It cannot simply be added to other words.
the root word of "civilizations" is _civilize.
Citizen
"The root civ" is not a standard English phrase. It may be a typo or mispronunciation of "the root of civilization," which could refer to studying the origins and core components of human society and culture.
CIV
The word in question is "Civilian".
The word civil has two syllables. Civ-il.
There are three syllables in the word civil rights. The syllables are civ-il-rights.
The word civilization is stressed on the fourth syllable: civ il i za tion.
CIV - band - ended in 2000.
CIV - band - was created in 1994.
The prefix civ means citizen. This is shown in civil.