Where does “tridhjetë” come from?

tridhjetë (Proto-Indo-European) comes from Albanian dhjetë, from Albanian djeth, from Proto-Albanian detsa, from Proto-Indo-European deḱs- — right.

Ancestry of “tridhjetë”, step by step

tridhjetë traces back through two separate lines of ancestry.

via Albanian dhjetë

StepLanguageWordMeaning
1Albaniandhjetëten
2Albaniandjeth—
3Proto-Albaniandetsaten; right
4Proto-Indo-Europeandeḱs-right

via Albanian tre

StepLanguageWordMeaning
1Albaniantrethree
2Proto-Albaniantrejethree
3Proto-Indo-European*tréyes—
Every word from Proto-Indo-European deḱs- →Every word from Proto-Albanian detsa →Every word from Albanian djeth →