Where does “straightface” come from?

straightface (English) comes from English straight, from Middle English streight, from Middle English strecchen, from Old English streċċan, from Proto-West Germanic strakkjan, from Proto-Indo-European (s)treg- — rigid, stiff; to be stiff, rigid, strong.

straightface (English): An obvious, apparent, or stereotypical appearance...

Definitions

  1. An obvious, apparent, or stereotypical appearance...

Ancestry of “straightface”, step by step

straightface traces back through two separate lines of ancestry.

via English straight

StepLanguageWordMeaning
1EnglishstraightNot crooked or bent; having a constant direction...
2Middle Englishstreightstraight; direct
3Middle EnglishstrecchenTo stretch out, spread, extend; To stretch,...
4Old Englishstreċċanto stretch, hold out, extend, spread out,...
5Proto-West Germanicstrakkjanto stretch, to make straight
6Proto-Indo-European(s)treg-rigid, stiff; to be stiff, rigid, strong

via English face

StepLanguageWordMeaning
1EnglishfaceThe front part of the head of a human or other...
2Middle Englishfaceface; Alternative form of fass
3Old Frenchfaceface
4Late Latinfacia
Every word from Proto-Indo-European (s)treg-