Where does “клас” come from?

клас (Bulgarian) comes from French classe, from Italian classe, from Spanish clase, from Portuguese classe, from German klasse, from Russian класс, from Latin classis, from Proto-Italic klāssis — to call, cry, summon.

клас (Bulgarian): ear of corn

Definitions

  1. ear of corn

Ancestry of “клас”, step by step

клас traces back through two separate lines of ancestry.

via French classe

StepLanguageWordMeaning
1Frenchclasseclass, type, group; "Une classe de conscrits"...
2Italianclasseclass; classroom; style
3Spanishclaselecture; class; kind, sort, type
4Portugueseclasseclass, kind; class; elegance; class
5Germanklassegreat, awesome
6Russianклассclass
7Latinclassisany one of the five divisions into which Servius...
8Proto-Italicklāssis
9Proto-Indo-Europeankelh₁-to call, cry, summon

via Proto-Slavic kȏlsъ

StepLanguageWordMeaning
1Proto-Slavickȏlsъear (of grain)
2Proto-Indo-EuropeankolH-so-
Every word from Proto-Indo-European kelh₁-Every word from Proto-Italic klāssisEvery word from Latin classis