Where does “gûyrasapukaîa” come from?

gûyrasapukaîa (Old Tupi) comes from Old Tupi -a, from Proto-Tupi-Guarani *-aβ.

Ancestry of “gûyrasapukaîa”, step by step

Step	Language	Word	Meaning
1	Old Tupi	-a	—
2	Proto-Tupi-Guarani	*-aβ	—

gûyrasapukaîa — Etymology, Origin & Word History | Etymology Explorer