'br' => 'brezhoneg', # Breton
'brh' => 'Bráhuí', # Brahui
'bs' => 'bosanski', # Bosnian
+ 'btm' => 'Batak Mandailing', # Batak Mandailing
'bto' => 'Iriga Bicolano', # Rinconada Bikol
'bug' => 'ᨅᨔ ᨕᨘᨁᨗ', # Buginese
'bxr' => 'буряад', # Buryat (Russia)