The word nanosecond is formed by the prefix `` nano '' and the second is a basic unit of time or one sixth of a second . The word nanosecond is formed by the prefix `` nano '' and the second one is second a basic unit of time or a sixtieth of a second . The word nanosecond is formed by the prefix `` nano '' and the basic one is second a second unit of time or a sixtieth of a second .