Where does “sixty” come from?

sixty (Hawaiian Creole) comes from English sixty, from Middle English sixty, from Old English sixtiġ, from Proto-Germanic sehs tigiwiz — sixty.

Ancestry of “sixty”, step by step

StepLanguageWordMeaning
1EnglishsixtyThe cardinal number occurring after fifty-nine...
2Middle Englishsixty
3Old Englishsixtiġsixty
4Proto-Germanicsehs tigiwizsixty
Every word from Proto-Germanic sehs tigiwiz