| 1 | French | classifier | to classify |
| 2 | French | classe | class, type, group; "Une classe de conscrits"... |
| 3 | Italian | classe | class; classroom; style |
| 4 | Spanish | clase | lecture; class; kind, sort, type |
| 5 | Portuguese | classe | class, kind; class; elegance; class |
| 6 | German | klasse | great, awesome |
| 7 | Russian | класс | class; grade ; form; classroom |
| 8 | Latin | classis | any one of the five divisions into which Servius... |
| 9 | Proto-Italic | klāssis | — |
| 10 | Proto-Indo-European | kelh₁- | to call, cry, summon |