Answer:
Hi!
The root word for the word "time" is chron/o.
Explanation:
The root of a word is defined as a "morpheme, not necessarily surviving as a word in itself, from which words have been made by the addition of prefixes or suffixes or by other modification". In this case, the root word of the word time is chrono, which is derived from the green word khronos that refers to "time".