Where does “steir” come from?

steir (Middle English) comes from Old English stǣġer, from Proto-Germanic staigriz, from Proto-Indo-European steyǵʰ- — to go.

Ancestry of “steir”, step by step

StepLanguageWordMeaning
1Old Englishstǣġerstair, staircase
2Proto-Germanicstaigrizscaffold, platform; stairs
3Proto-Indo-Europeansteyǵʰ-to go
Every word from Proto-Indo-European steyǵʰ- →Every word from Proto-Germanic staigriz →Every word from Old English stǣġer →