Where does “Ruthie” come from?

Ruthie is an English diminutive formed from Ruth with the English suffix -y, which derives from Middle English -y, Middle French -ie, Latin -ia, Latin -ivus, and ultimately Proto-Indo-European -kos.

Ancestry of “Ruthie”, step by step

Ruthie traces back through two separate lines of ancestry.

via English Ruth

StepLanguageWordMeaning
1EnglishRuthA book of the Old Testament and the Hebrew Tanakh
2Hebrewרותroger

via English ie

StepLanguageWordMeaning
1EnglishieAlternative form of i.e
Every word from Hebrew רותEvery word from English Ruth