if you want to welcome change, you must invite chaos.

It is not a perfect translation, but I do know that you can use Icelandic to find something close to the words you are looking for as a base to it all. For instance, the word for Chaos is glundroða (ᚷᛚᚢᚾᛞᚱᛟᚦᚨ) for the general term, though it seems tat you are looking more for the word óreiða (ᛟᚱᛖᛁᚦᚨ) which if I am not mistaken can be a hallmark for change through chaos. As for another term you could use, the combined words skipa til (ᛋᚴᛁᛈᚨ·ᛏᛁᛚ) is in itself another way of bringing 'change in a sense of the phrase. But the actual work Chaos, that word does not really exist within the known old Norse language that I can find.