Where does “hiin” come from?

hiin (Tagalog) comes from Tagalog hiya, from Proto-Malayo-Polynesian həyaq, from Proto-Austronesian *Səyaq.

Ancestry of “hiin”, step by step

StepLanguageWordMeaning
1Tagaloghiyashame; a painful feeling of having done something...
2Proto-Malayo-Polynesianhəyaq—
3Proto-Austronesian*Səyaq—
Every word from Proto-Austronesian *Səyaq →Every word from Proto-Malayo-Polynesian həyaq →Every word from Tagalog hiya →