Where does “indurandus” come from?

indurandus (Latin) comes from Latin induro, from Latin dūrō, from Latin dūrus, from Proto-Italic dūros, from Proto-Indo-European duh₂-ró-s, from Proto-Indo-European dweh₂- — far; long.

Definitions

Ancestry of “indurandus”, step by step

StepLanguageWordMeaning
1LatininduroI make or become hard; harden
2Latindūrōto harden, make hard
3Latindūrus—
4Proto-Italicdūros—
5Proto-Indo-Europeanduh₂-ró-slong, far
6Proto-Indo-Europeandweh₂-far; long
Every word from Proto-Indo-European dweh₂- →Every word from Proto-Indo-European duh₂-ró-s →Every word from Proto-Italic dūros →