Where does “Margaretina” come from?

Margaretina (English) comes from English Margaret, from Middle English Margaret, from Old French Margaret, from Latin margarīta, from Ancient Greek μαργαρίτης, from Proto-Iranian *mŕ̥ga-ahri-ita-.

Ancestry of “Margaretina”, step by step

Margaretina traces back through two separate lines of ancestry.

via English Margaret

StepLanguageWordMeaning
1EnglishMargaretA river in southwestern Western Australia, presumed named for a cousin of John Garrett Bussell, founder of Busselton. See Margaret River
2Middle EnglishMargaretMargaret
3Old FrenchMargaret
4Latinmargarītapearl
5Ancient Greekμαργαρίτηςpearl; a type of Egyptian plant
6Proto-Iranian*mŕ̥ga-ahri-ita-

via English Ina

StepLanguageWordMeaning
1EnglishIna
Every word from Proto-Iranian *mŕ̥ga-ahri-ita-Every word from Ancient Greek μαργαρίτηςEvery word from Latin margarīta