Where does “chiasso” come from?

chiasso (Italian) comes from Latin classis, from Proto-Italic klāssis, from Proto-Indo-European kelh₁- — to call, cry, summon.

chiasso (Italian): din, uproar, shout; fuss, stir; alley

Definitions

chiasso traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Latin	classis	any one of the five divisions into which Servius...
2	Proto-Italic	klāssis	—
3	Proto-Indo-European	kelh₁-	to call, cry, summon

Step	Language	Word	Meaning
1	Vulgar Latin	classum	—
2	Latin	classicum	nominative neuter singular of classicus; signal...