English steadfast

← Old English stedefæst (inherited)

← Danish stedfast (cognate)

← Danish stadfæste (cognate)

← Middle Dutch stedevast (cognate)

← English stead (compound)

← English fast (compound)

← Middle English stedefast (inherited)

← Proto-Germanic *stadifastuz (inherited)

← Proto-Indo-European *steh₂- (root)

← Icelandic staðfastur (cognate)

← Norwegian Bokmål stadfeste (cognate)

← Swedish stadfästa (cognate)

→ English steadfastness (affix)

→ English steadfastly (suffix)

→ English unsteadfast (prefix)

→ Maori tina (link)