Where does “Agustina” come from?

Agustina (Spanish) comes from Spanish Agustín, from Latin Augustīnus, from Latin Augustus, from Proto-Indo-European h₂ewg-, from Proto-Indo-European h₂weg-, from Proto-Indo-European h₂ug-.

Ancestry of “Agustina”, step by step

Step	Language	Word	Meaning
1	Spanish	Agustín	(at ease)
2	Latin	Augustīnus	of pertaining to Augustus
3	Latin	Augustus	venerable
4	Proto-Indo-European	h₂ewg-	to increase, to enlarge
5	Proto-Indo-European	h₂weg-	to increase, to enlarge
6	Proto-Indo-European	h₂ug-	—

Every word from Proto-Indo-European h₂ug- →Every word from Proto-Indo-European h₂weg- →Every word from Proto-Indo-European h₂ewg- →