Where does “sexagiens” come from?

sexagiens (Latin) comes from Latin sexāgintā, from Proto-Indo-European sweḱsḱomt, from Proto-Indo-European swéḱs-dḱomt — six-ten.

Ancestry of “sexagiens”, step by step

StepLanguageWordMeaning
1Latinsexāgintāsixty; 60
2Proto-Indo-Europeansweḱsḱomt—
3Proto-Indo-Europeanswéḱs-dḱomtsix-ten
Every word from Proto-Indo-European swéḱs-dḱomt →Every word from Proto-Indo-European sweḱsḱomt →Every word from Latin sexāgintā →