So, Ochsen -> Oxen, Maenner -> Men
(Slightly unrelated) So if you look at Scotland and Ireland, they've get some really interesting things in their dialects. die "Kirche" in German is a "church", in some dialects in scotland, it's a "kirker". Or in old dialects in Ireland, "children" is sometimes spoken as "childer".
EDIT: I retract my theory on the relationship between children and kindern :)