Here's a breakdown of how it evolved:
1. Latin: "omnibus"
2. French: "omnibus" (adopted from Latin)
3. English: "omnibus" (adopted from French)
4. English: "bus" (shortened form of "omnibus")
The first public transport service to use the term "omnibus" was in Paris in 1828. These horse-drawn carriages were called "omnibuses" because they were open to the public and carried passengers to various destinations. The term caught on and spread to other countries, eventually evolving into the shorter, more familiar "bus" we use today.