paul_s wrote in linguaphiles

Father in Indo-European

Hello again.

I was wondering whether anyone knew the etymology of the Ukrainian word 'батько'?  I'm trying to come up with a plausable explanation as to how two so closely related languages as Russian and Ukrainian get two completely different words for 'father'.  I can explain 'отец' in Russian but I don't know where 'батько' comes from.

Thank you.