Via means by way of a particular route or means. Fly via Dubai, sent via email, via the back door.
It works for routes and for methods alike, and the second use has grown enormously with technology — via email, via the app. It is the Latin for a road, unchanged, and it is one of the few Latin words most people use daily without noticing.
1prepositionviaBy way of a particular route or means.
“We flew to Sydney via Singapore.”
via is a route.
Latin via means a road or way. Voyage, obvious and deviate come from the same road.
Proto-Indo-European
*weǵʰ-
Latin
via — road
English, today
via
Latin via (“road”), possibly from Proto-Indo-European weǵʰ-. Possible a doublet of way. The sense in electronics is also explained as vertical interconnect access.
Etymology from Wiktionary, CC BY-SA