Vehicular (adjective)

1. Relating to a vehicle or vehicles.
2. Relating to the operation or use of vehicles.

Origin:

From the latin word "vehiculum" meaning "carriage, vehicle".

Examples:

1. He was charged with vehicular manslaughter for causing the accident.
2. The city had a vehicular traffic problem that caused traffic jam.
3. The vehicular emission is a major contributor to air pollution.
4. The company is focused on developing vehicular technology to improve safety and fuel efficiency.
5. The traffic laws are in place to regulate vehicular movement on the roads.