Where does “sesenta” come from?

sesenta (Bikol Central) comes from Spanish sesenta, from Old Spanish sessaenta, from Latin sexāgintā, from Proto-Indo-European sweḱsḱomt, from Proto-Indo-European swéḱs-dḱomt — six-ten.

Ancestry of “sesenta”, step by step

StepLanguageWordMeaning
1Spanishsesentasixty
2Old Spanishsessaentasixty
3Latinsexāgintāsixty; 60
4Proto-Indo-Europeansweḱsḱomt
5Proto-Indo-Europeanswéḱs-dḱomtsix-ten
Every word from Proto-Indo-European swéḱs-dḱomtEvery word from Proto-Indo-European sweḱsḱomtEvery word from Latin sexāgintā