Where does “raiz fors” come from?

raiz fors (Middle 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 “raiz fors”, step by step

StepLanguageWordMeaning
1Old Frenchfortstrong; strongly
2Latinfortisstrong, powerful; firm, resolute, steadfast,...
3Old Latinforctisstrong
4Proto-Italicforktisstrong, robust
5Proto-Indo-Europeanbʰerǵʰ-to rise; high, lofty; hill, mountain
Every word from Proto-Indo-European bʰerǵʰ- →Every word from Proto-Italic forktis →Every word from Old Latin forctis →