Where does “Kilpiäinen” come from?

Kilpiäinen (Finnish) comes from Finnish kilpi, from Proto-Finnic kilpi, from Proto-Germanic hlībō — shelter, covering.

Ancestry of “Kilpiäinen”, step by step

StepLanguageWordMeaning
1Finnishkilpishield, protective armor; shield with route...
2Proto-Finnickilpishield
3Proto-Germanichlībōshelter, covering
Every word from Proto-Germanic hlībō →Every word from Proto-Finnic kilpi →Every word from Finnish kilpi →