Where does “Blackacre” come from?

Blackacre derives from English black and Old Norse akr, from Proto-Germanic akraz and Proto-Indo-European h₂éǵros, ultimately from Proto-Indo-European bʰleyǵ-.

Ancestry of “Blackacre”, step by step

Step	Language	Word	Meaning
1	English	Acre	—
2	French	âcre	acrid, bitter; sour, bitter
3	Latin	ācer	—
4	Latin	saccharum	sugar
5	Ancient Greek	σάκχαρ	sugar; sugar cane
6	Sanskrit	शर्करा	gravel, grit, pebbles, shingle, gravelly mould or...
7	Proto-Indo-Aryan	śárkaraH	—
8	Proto-Indo-Iranian	ćárkaraH	—
9	Proto-Indo-European	ḱorkeh₂	gravel, boulder; boulder; gravel

Every word from Proto-Indo-European ḱorkeh₂ →