The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Proto-Indo-European*mey-?
- Proto-Indo-European*meyth₂-
- Latinmūtō
- Latincommūtō
- Englishcommute
- English todaycommuter
From commute + -er. The sense of "one who travels to work" derives via commutation ticket, an early form of season ticket.
Etymology from Wiktionary, CC BY-SA 4.0.