Origine: Amharic, East Africa
Source: Ethiopian Amharic proverb; no. 11 in the English list of "155 Ethiopian Proverbs and Wise Sayings in Amharic and English" (allaboutethio.com), which words it "When webs of a spider join together, they can trap a lion". That page lists the sayings without explanations, so the meaning given here is our own reading.
Le sens donné ici est notre propre lecture. D’autres interprétations existent.