Where does “óa” come from?

óa (Old Norse) comes from Old Norse ógn, from Old Norse agn, from Proto-Germanic aganą, from Proto-Indo-European h₂eh₂ógʰe, from Proto-Indo-European h₂eǵʰ- — cow.

Ancestry of “óa”, step by step

Step	Language	Word	Meaning
1	Old Norse	ógn	terror, threat, dispute
2	Old Norse	agn	bait
3	Proto-Germanic	aganą	to fear, to be afraid
4	Proto-Indo-European	h₂eh₂ógʰe	to be upset, afraid
5	Proto-Indo-European	h₂eǵʰ-	cow

Words derived from “óa”

Every word from Proto-Indo-European h₂eǵʰ- →