Where does “Fort-Escu” come from?

Fort-Escu (Norman French) comes from Old French fort, from Latin fortis, from Old Latin forctis, from Proto-Italic forktis, from Proto-Indo-European bʰerǵʰ- — to rise; high, lofty; hill, mountain.

Ancestry of “Fort-Escu”, step by step

Fort-Escu traces back through two separate lines of ancestry.

via Old French fort

StepLanguageWordMeaning
1Old Frenchfortstrong; strongly
2Latinfortisstrong, powerful; firm, resolute, steadfast,...
3Old Latinforctisstrong
4Proto-Italicforktisstrong, robust
5Proto-Indo-Europeanbʰerǵʰ-to rise; high, lofty; hill, mountain

via Old French escut

StepLanguageWordMeaning
1Old Frenchescutshield
2Latinscūtuma type of shield: the scutum, the large oblong wooden shield carried by the Roman infantry
3Proto-Indo-Europeanskei-to cut, to divide, to separate; to cut, split; to...
4Proto-Indo-Europeansek-to cut, cut off, sever
Every word from Proto-Indo-European bʰerǵʰ- →Every word from Proto-Italic forktis →Every word from Old Latin forctis →
Fort-Escu — Etymology, Origin & Word History | Etymology Explorer