Where does “staþolfæstnian” come from?

staþolfæstnian (Old English) comes from Old English staþolfæst, from Old English staþol, from Proto-Germanic staþulaz, from Proto-Indo-European *steh₂-.

Ancestry of “staþolfæstnian”, step by step

StepLanguageWordMeaning
1Old Englishstaþolfæststeadfast, stable, firm
2Old Englishstaþolfoundation, establishment; fixed position;...
3Proto-Germanicstaþulazposition, standing; support, frame, rack
4Proto-Indo-European*steh₂-
Every word from Proto-Indo-European *steh₂-Every word from Proto-Germanic staþulazEvery word from Old English staþol