Where does “hammasajos” come from?

hammasajos (Finnish) comes from Finnish ajos, from Finnish ajaa, from Proto-Finnic ajadak, from Proto-Uralic aja-, from Proto-Indo-Iranian Háȷ́ati, from Proto-Indo-European h₂éǵeti, from Proto-Indo-European h₂eǵ- — to drive.

Ancestry of “hammasajos”, step by step

hammasajos traces back through two separate lines of ancestry.

via Finnish ajos

StepLanguageWordMeaning
1Finnishajosabscess
2Finnishajaato drive, ride, travel in a vehicle, transport in...
3Proto-Finnicajadakto go in a vehicle, to drive
4Proto-Uralicaja-to drive; to hunt, chase
5Proto-Indo-IranianHáȷ́atito drive, lead
6Proto-Indo-Europeanh₂éǵetito be driving
7Proto-Indo-Europeanh₂eǵ-to drive

via Finnish hammas

StepLanguageWordMeaning
1Finnishhammastooth
2Proto-Finnichambastooth
3Proto-Balto-Slavicźámbastooth; sharp or jagged edge
4Proto-Indo-Europeanǵómbʰostooth; row of teeth; peg
5Proto-Indo-Europeanǵómbʰ-to pierce, gnaw through; tooth, horn, peg
Every word from Proto-Indo-European h₂eǵ- →Every word from Proto-Indo-European h₂éǵeti →Every word from Proto-Indo-Iranian Háȷ́ati →