From the crossroads or toll collector
Travius is a modern elaboration of the name Travis, which originates from the Old French word 'traverser'. It historically referred to someone who lived near a bridge or ford, or worked as a collector of tolls at a crossing. The '-ius' suffix adds a Latinate, formal flair to the traditional English surname-turned-first-name.
Less common today
Travius isn't in the latest US Top 1000. It last peaked at #4,453 in 1992.
US births per 5-year period, 1990βpresent (SSA data).