←
Proto-Austronesian *Səpat (inherited)
←
Malay empat (inherited)
←
Proto-Malayo-Chamic *əmpat (inherited)
←
Proto-Malayic *əmpat (inherited)
←
Proto-Malayo-Sumbawan *əmpat (inherited)
←
Proto-Malayo-Polynesian *əpat (inherited)
→
Indonesian catur (link)