Where does “ziptop” come from?

ziptop (English) comes from English top, from Middle English top, from Old English topp, from Proto-West Germanic *topp, from Proto-Germanic tuppaz, from Proto-Indo-European dumb- — tail, rod, staff, pole, penis; tail, rod, staff,...

ziptop (English): Fastened by a zipper at the top

Definitions

  1. Fastened by a zipper at the top

Ancestry of “ziptop”, step by step

ziptop traces back through two separate lines of ancestry.

via English top

StepLanguageWordMeaning
1EnglishtopThe highest or uppermost part of something; A...
2Middle EnglishtopThe summit or top of something, especially a...
3Old Englishtopptop, summit (of something)
4Proto-West Germanic*topptop, summit, crest
5Proto-Germanictuppaztuft, plait; top, summit
6Proto-Indo-Europeandumb-tail, rod, staff, pole, penis; tail, rod, staff,...

via English ZIP

StepLanguageWordMeaning
1EnglishZIPInitialism of Zone Improvement Plan; A ZIP code;...
Every word from Proto-Indo-European dumb-Every word from Proto-Germanic tuppazEvery word from Proto-West Germanic *topp