Where does “pesutabletti” come from?

pesutabletti (Finnish) comes from Finnish tabletti, from Swedish tablett, from French tablette, from Old French tablete, from Old French -eté, from Latin -ittus, from Proto-Italic -tos, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

Ancestry of “pesutabletti”, step by step

pesutabletti traces back through two separate lines of ancestry.

via Finnish tabletti

StepLanguageWordMeaning
1Finnishtablettipill, tablet; place mat; tablet, tablet computer
2Swedishtabletta tablet or pill
3Frenchtablettetablet; bar
4Old Frenchtabletesmall table; a board to be written on; tablet
5Old French-etévariant of -té
6Latin-ittusdiminutive suffix, used to create nouns
7Proto-Italic-tosCreates verbal adjectives from verb stems
8Proto-Indo-European-tósCreates verbal adjectives from verb stems

via Finnish pesu

StepLanguageWordMeaning
1Finnishpesuwash, washing
2Finnish-uForms nouns from verbs. Most common with "e"- and...
3Proto-Finnic-uForms nouns from adjectives, nouns
Every word from Proto-Indo-European -tós