Where does “itey” come from?

itey (Tagalog) comes from Tagalog ito, from Proto-Austronesian (i-)Cu — that.

itey (Tagalog): this; it

Definitions

Step	Language	Word	Meaning
1	Tagalog	ito	this; it
2	Proto-Austronesian	(i-)Cu	that

itey — Etymology, Origin & Word History | Etymology Explorer