I wouldn't be surprised if it went father back. Farsi, another Indo European language has the -en/an ending, for human nouns. Child/Bache -> children/bachegan,

I wouldn't be surprised if it went father back. Farsi, another Indo European language has the -en/an ending, for human nouns. Child/Bache -> children/bachegan, brother/boradar -> brethren/boradaran, Daughter/dokhtar -> dokhtaran. I'm not sure if they share the same derivations but seem related.