Where does “sonde” come from?

sonde (Old Frisian) comes from Proto-Germanic sundī, from Proto-Indo-European h₁ēs- — to be.

Ancestry of “sonde”, step by step

StepLanguageWordMeaning
1Proto-Germanicsundīsomething that should not be; sin, crime
2Proto-Indo-Europeanh₁ēs-to be

Words derived from “sonde”

Every word from Proto-Indo-European h₁ēs- →Every word from Proto-Germanic sundī →