omnibus

The word originates from the Latin dative plural form "omnibus", meaning "for all". It was first adopted into French and then English in the early 19th century as a name for a public horse-drawn vehicle that was "for all" people, distinguishing it from private carriages. This term was later clipped to form the modern word "bus". The original Latin form "omnibus" was simultaneously borrowed to describe a book containing a collection of works "for all" tastes or a single legislative bill containing diverse provisions "for all" purposes, giving rise to its adjectival use.

Structure: omni (all) + bus (for all) omni: Latin origin, meaning "all". It functions as a combining form in English. bus: A clipping of the Latin dative plural suffix "-ibus", meaning "for". In the original Latin phrase "omnibus" (for all), it functioned as a grammatical case ending.