Where does “drij” come from?

drij (Dutch) comes from Middle Dutch dri, from Old Dutch thrī, from Proto-Germanic þrīz, from Proto-Indo-European *tréyes.

Ancestry of “drij”, step by step

StepLanguageWordMeaning
1Middle DutchdriAlternative form of drie
2Old Dutchthrī—
3Proto-Germanicþrīzthree
4Proto-Indo-European*tréyes—
Every word from Proto-Indo-European *tréyes →Every word from Proto-Germanic þrīz →Every word from Old Dutch thrī →