Where does “Ternatese” come from?

Ternatese (English) comes from English ternate, from Latin ternus, from Latin ter, from Latin terr, from Old Latin tris, from Proto-Italic trēs, from Proto-Indo-European *tréyes.

Ancestry of “Ternatese”, step by step

Ternatese traces back through two separate lines of ancestry.

via English ternate

Step	Language	Word	Meaning
1	English	ternate	Having three divisions
2	Latin	ternus	triple, threefold, trinary; three each
3	Latin	ter	thrice
4	Latin	terr	—
5	Old Latin	tris	—
6	Proto-Italic	trēs	three
7	Proto-Indo-European	*tréyes	—

via English ese

Step	Language	Word	Meaning
1	English	ese	dude, man
2	Mexican Spanish	ese	The name of the Latin-script letter S; that;...
3	Latin	ipse	himself, herself, itself, the very, the actual;...
4	Proto-Italic	*e(s)peso	himself, herself, itself

Every word from Proto-Indo-European *tréyes →