Where does “spaz” come from?

spaz (Middle High German) comes from Middle English sparwe, from Old High German sparo, from Proto-West Germanic sparwō, from Proto-Germanic sparwô, from Proto-Indo-European spḗr — sparrow.

Ancestry of “spaz”, step by step

StepLanguageWordMeaning
1Middle EnglishsparweThe sparrow or its meat
2Old High Germansparosparrow
3Proto-West Germanicsparwōsparrow
4Proto-Germanicsparwôsparrow
5Proto-Indo-Europeanspḗrsparrow

Words derived from “spaz”

Every word from Proto-Indo-European spḗr →Every word from Proto-Germanic sparwô →Every word from Proto-West Germanic sparwō →