Where does “ardus” come from?

ardus (French) comes from French ardu, from Latin arduus, from Proto-Italic arðwos, from Proto-Indo-European h₃erdʰ-, from Proto-Indo-European -wós — Creates adjectives from verb stems.

ardus (French): masculine plural of ardu

Definitions

  1. masculine plural of ardu

Ancestry of “ardus”, step by step

StepLanguageWordMeaning
1Frenchardusteep, hence hard to climb; arduous, needing or...
2Latinarduuslofty, high, steep, tall, elevated; hard to...
3Proto-Italicarðwos—
4Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
5Proto-Indo-European-wósCreates adjectives from verb stems
Every word from Proto-Indo-European -wós →Every word from Proto-Indo-European h₃erdʰ- →Every word from Proto-Italic arðwos →
ardus — Etymology, Origin & Word History | Etymology Explorer