Where does “poly pocket” come from?

poly pocket (English) comes from English polyurethane, from English poly-, from Ancient Greek πολύς, from Ancient Greek πόρος, from Ancient Greek πείρω, from Proto-Hellenic *péryō.

poly pocket (English): A clear plastic sleeve for documents; a sheet...

Definitions

  1. A clear plastic sleeve for documents; a sheet...

Ancestry of “poly pocket”, step by step

poly pocket traces back through two separate lines of ancestry.

via English polyurethane

StepLanguageWordMeaning
1EnglishpolyurethaneAny of various polymeric resins containing...
2Englishpoly-many; polymer
3Ancient Greekπολύςmany, a lot of; neuter πολύ or πολλά as...
4Ancient Greekπόροςa means of passage, passageway, way, opening;...
5Ancient GreekπείρωI pierce, run through; I cleave through
6Proto-Hellenic*péryō

via English pocket

StepLanguageWordMeaning
1EnglishpocketA bag stitched to an item of clothing, used for...
2Middle Englishpocketbag, sack
3Anglo-Normanfro
Every word from Proto-Hellenic *péryōEvery word from English poly-Every word from Ancient Greek πείρω