Where does “patent” come from?

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

patent (Middle English): A letter conferring a privilege or status; Such a...

Definitions

  1. A letter conferring a privilege or status; Such a...

Ancestry of “patent”, step by step

patent traces back through two separate lines of ancestry.

via Middle French patent

StepLanguageWordMeaning
1Middle Frenchpatent
2Old Frenchpatent
3Latinpatēnsbeing opening; open
4Latinpateōto be open, accessible, attainable
5Proto-Indo-Europeanpeth₂-to spread out; to fly

via Anglo-Norman French lettre patente

StepLanguageWordMeaning
1Anglo-Norman Frenchlettre patente
2Latinlittera patensopen letter

Words derived from “patent

Every word from Proto-Indo-European peth₂-Every word from Latin pateōEvery word from Latin patēns