einspurig (German) comes from German ein, from Middle High German ein, from Old High German ein, from Proto-West Germanic ain, from Proto-Germanic ainaz, from Proto-Indo-European óynos — one; single.
einspurig (German): single-lane, single-track
Definitions
single-lane, single-track
Ancestry of “einspurig”, step by step
einspurig traces back through two separate lines of ancestry.