Where does “neiz wer” come from?

neiz wer (Middle High German) comes from Old High German ni, from Proto-Germanic nē, from Proto-Germanic aiwaz, from Proto-Indo-European h₂eyu-, from Proto-Indo-European h₂ey- — vital force, life, age, eternity; day, morning.

Ancestry of “neiz wer”, step by step

Step	Language	Word	Meaning
1	Old High German	ni	not
2	Proto-Germanic	nē	not
3	Proto-Germanic	aiwaz	long time, age, eternity
4	Proto-Indo-European	h₂eyu-	vitality; eternal; vital force, life, long life,...
5	Proto-Indo-European	h₂ey-	vital force, life, age, eternity; day, morning

Every word from Proto-Indo-European h₂ey- →Every word from Proto-Indo-European h₂eyu- →Every word from Proto-Germanic aiwaz →