Where does “liukuportaikko” come from?

liukuportaikko (Finnish) comes from Finnish portaikko, from Finnish porras, from Proto-Finnic pordas, from Proto-Germanic bordaz, from Proto-Germanic burdą, from Proto-Indo-European bʰers- — top, tip, point.

liukuportaikko (Finnish): escalator

Definitions

  1. escalator

Ancestry of “liukuportaikko”, step by step

liukuportaikko traces back through two separate lines of ancestry.

via Finnish portaikko

StepLanguageWordMeaning
1Finnishportaikkostaircase
2Finnishporrasstep, stair
3Proto-Finnicpordasstair, step
4Proto-Germanicbordaz—
5Proto-Germanicburdąboard, plank; table
6Proto-Indo-Europeanbʰers-top, tip, point

via Finnish liuku

StepLanguageWordMeaning
1Finnishliukuskid; slide
2Finnish-uForms nouns from verbs. Most common with "e"- and...
3Proto-Finnic-uForms nouns from adjectives, nouns
Every word from Proto-Indo-European bʰers- →Every word from Proto-Germanic burdą →Every word from Proto-Germanic bordaz →