Where does “sixies” come from?

sixies (English) comes from English Six, from Middle English six, from Old English six, from Proto-West Germanic sehs, from Proto-Germanic sehs, from Proto-Indo-European swéḱs — six.

sixies (English): A call in any children's game, such as jacks,...

Definitions

  1. A call in any children's game, such as jacks,...

Ancestry of “sixies”, step by step

sixies traces back through two separate lines of ancestry.

via English Six

StepLanguageWordMeaning
1EnglishSixintelligence service
2Middle Englishsixsix
3Old Englishsixsix
4Proto-West Germanicsehssix
5Proto-Germanicsehssix
6Proto-Indo-Europeanswéḱssix

via English sies

StepLanguageWordMeaning
1EnglishsiesExpressing disgust, disappointment, or annoyance;...
Every word from Proto-Indo-European swéḱsEvery word from Proto-Germanic sehsEvery word from Proto-West Germanic sehs