The first two and the last are Indo-European languages; it appears that mother in Chinese is "mu". It's "obaasaan" in Japanese, though. It'd become "baa" if yo

The first two and the last are Indo-European languages; it appears that mother in Chinese is "mu". It's "obaasaan" in Japanese, though. It'd become "baa" if you remove the polite syllables, and thus also ends up becoming a labial consonant (ओष्ट्य for those familiar with the verse in पाणिनी). Curious indeed.