Where does “thine” come from?

Thine comes from Middle English thyn, from Old English þīn, from Proto-Germanic þīnaz, ultimately from Proto-Indo-European túh₂, a possessive pronoun meaning "your" or "yours."

thine (English): Singular second person prevocalic possessive...

Definitions

  1. Singular second person prevocalic possessive...

Ancestry of “thine”, step by step

StepLanguageWordMeaning
1Middle EnglishþynAlternative form of þin
2Old Englishþīnyour (singular), thine, thy
3Proto-Germanic*þīn—
4Proto-Germanicþīnazyour, yours (thy, thine); 2nd person singular possessive
5Proto-Indo-Europeantéynosthy; thine
6Proto-Indo-Europeantúh₂you, thou

Words derived from “thine”

Every word from Proto-Indo-European túh₂ →Every word from Proto-Indo-European téynos →Every word from Proto-Germanic þīnaz →