The Austronesian Comparative Dictionary

*bayaw brother-in-law (man speaking)

PWMP bayaw brother-in-law (man speaking)

WMP
Agta (Central Cagayan) biyaw in-law
Agta (Eastern) biyaw in-law
Ibaloy bayaw brother-in-law, sister-in-law
Pangasinan bayáw brother-in-law
Sambal bayaw brother-in-law (sometimes used only between males)
Sambal (Botolan) bayaw brother-in-law (sometimes used only between males)
Tagalog bayáw brother-in-law
Kalamian Tagbanwa bayaw brother-in-law (m.s.)
Hiligaynon bayáw brother-in-law, sister-in-law
Mamanwa bazaw brother-in-law (m.s.)
Cebuano bayáw brother-in-law, sister-in-law
Kalagan bayaw brother-in-law (m.s.)
Alas bayou brother-in-law (woman speaking), sister-in-law (man speaking)
Toba Batak bao wife’s brother’s wife, husband’s sister’s husband