Where does “caur” come from?

caur (Scots) comes from Middle English carre, from Anglo-Norman carre, from Latin carra, from Latin carrus, from Gaulish karros, from Proto-Celtic karros, from Proto-Indo-European ḱr̥sós, from Proto-Indo-European ḱers- — to run.

caur (Scots): left, left-handed; awkward; car

Definitions

left, left-handed; awkward; car

Ancestry of “caur”, step by step

caur traces back through two separate lines of ancestry.

via Middle English carre

Step	Language	Word	Meaning
1	Middle English	carre	cart, wagon
2	Anglo-Norman	carre	cart
3	Latin	carra	—
4	Latin	carrus	a wagon, a four-wheeled baggage cart; a cartload,...
5	Gaulish	karros	wagon
6	Proto-Celtic	karros	wagon
7	Proto-Indo-European	ḱr̥sós	vehicle
8	Proto-Indo-European	ḱers-	to run

via Scottish Gaelic ceàrr

Step	Language	Word	Meaning
1	Scottish Gaelic	ceàrr	wrong, incorrect, immoral, astray; left; wrong
2	Old Irish	cerr	crooked, wry, maimed
3	Proto-Celtic	*kersos	—
4	Proto-Indo-European	(s)ḱer-	dung, manure, filth; manure, dung, filth

Words derived from “caur”

Every word from Proto-Indo-European ḱers- →Every word from Proto-Indo-European ḱr̥sós →Every word from Proto-Celtic karros →