Where does “patentese” come from?

patentese (English) comes from English patent, from Middle English patent, from Middle French patent, from Old French patent, from Latin patēns, from Latin pateō, from Proto-Indo-European peth₂- — to spread out; to fly.

patentese (English): The legal jargon used in patents

Definitions

  1. The legal jargon used in patents

Ancestry of “patentese”, step by step

patentese traces back through two separate lines of ancestry.

via English patent

StepLanguageWordMeaning
1EnglishpatentA declaration issued by a government agency...
2Middle EnglishpatentA letter conferring a privilege or status; Such a...
3Middle Frenchpatent
4Old Frenchpatent
5Latinpatēnsbeing opening; open
6Latinpateōto be open, accessible, attainable
7Proto-Indo-Europeanpeth₂-to spread out; to fly

via English ese

StepLanguageWordMeaning
1Englishesedude, man
2Mexican SpanisheseThe name of the Latin-script letter S; that;...
3Latinipsehimself, herself, itself, the very, the actual;...
4Proto-Italic*e(s)pesohimself, herself, itself
Every word from Proto-Indo-European peth₂-Every word from Latin pateōEvery word from Latin patēns
patentese — Etymology, Origin & Word History | Etymology Explorer