←
Proto-Malayic *hutək (inherited)
←
Proto-Malayic *utək (mention)
←
Proto-Malayic *utak (mention)
←
Proto-Malayo-Polynesian *hutək (inherited)
←
Proto-Malayo-Polynesian *qutək (mention)
←
Proto-Malayo-Polynesian *qutak (mention)
→
Indonesian otak (inherited)