Where does “kutu” come from?

kutu (Proto-Eastern Malayo-Polynesian) comes from Proto-Central-Eastern Malayo-Polynesian kutu, from Austronesian *kutu, from Proto-Austronesian *kuCux — louse insect.

Ancestry of “kutu”, step by step

StepLanguageWordMeaning
1Proto-Central-Eastern Malayo-Polynesiankutu—
2Austronesian*kutu—
3Proto-Austronesian*kuCuxlouse insect
Every word from Proto-Austronesian *kuCux →Every word from Austronesian *kutu →Every word from Proto-Central-Eastern Malayo-Polynesian kutu →