Where does “zwitzern” come from?

zwitzern (German) comes from Middle High German zwitzern, from Old High German zwizzirōn, from Proto-Germanic twitwizōną — To twitter; chirp.

Ancestry of “zwitzern”, step by step

StepLanguageWordMeaning
1Middle High Germanzwitzern—
2Old High Germanzwizzirōn—
3Proto-GermanictwitwizōnąTo twitter; chirp
Every word from Proto-Germanic twitwizōną →Every word from Old High German zwizzirōn →Every word from Middle High German zwitzern →