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
Ancestry of “ardus”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | French | ardu | steep, hence hard to climb; arduous, needing or... |
| 2 | Latin | arduus | lofty, high, steep, tall, elevated; hard to... |
| 3 | Proto-Italic | arðwos | — |
| 4 | Proto-Indo-European | h₃erdʰ- | to increase, grow; upright, high |
| 5 | Proto-Indo-European | -wós | Creates adjectives from verb stems |