Where does “eastbound” come from?

Eastbound combines English east with bound, which derives from Middle English est, from Old French bondir meaning "to leap," from Latin bombitīre, ultimately from Proto-Indo-European roots meaning "to swell" and "to dawn."

eastbound (English): Moving or heading towards the east; Toward the...

Definitions

  1. Moving or heading towards the east; Toward the...

Ancestry of “eastbound”, step by step

StepLanguageWordMeaning
1EnglishEastAny of various particular regions named for the cardinal direction in which they lie
2Middle Englishesteast, easternness; A location to the south; the...
3Old Englishēasteast; eastern
4Old Norseaustreast
5Proto-Germanicaustrąeast; east, eastward
6Proto-Germanicaustrazeast, eastern
7Proto-Indo-European*h₂éwsterosin the direction of dawn, east
Every word from Proto-Indo-European *h₂éwsteros