Where does “stērn” come from?

stērn (Middle Low German) comes from Old Saxon sterro, from Proto-West Germanic sterrō, from Proto-Germanic sternô, from Proto-Indo-European h₂stḗr, from Proto-Indo-European h₂eHs- — to be/become dry; to burn, to glow; hearth.

Ancestry of “stērn”, step by step

StepLanguageWordMeaning
1Old Saxonsterroa star
2Proto-West Germanicsterrō—
3Proto-Germanicsternôstar
4Proto-Indo-Europeanh₂stḗrstar
5Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth
Every word from Proto-Indo-European h₂eHs- →Every word from Proto-Indo-European h₂stḗr →Every word from Proto-Germanic sternô →