Where does “instability” come from?

Instability derives from Middle French instabilité, from Latin instabilitas, formed with the Latin suffix -tas from Latin instabilis, itself built from the Latin suffix -tus and the Proto-Indo-European suffix -teh₂ extending -tós.

instability (English): The quality of being unstable; A state that is...

Definitions

  1. The quality of being unstable; A state that is...

Ancestry of “instability”, step by step

StepLanguageWordMeaning
1Middle Frenchinstabilité
2Latininstabilitasunsteadiness, instability
3Latininstabilisunsteady, unstable, shaky; inconstant,...
4LatinstabilisThat stands firm; firm, steadfast, steady, sure,...
5Latinstarepresent active infinitive of stō; stand; to be
6LatinstoI stand; I stay, remain; I am
7Proto-Italicstaēōstand
8Proto-Indo-Europeansth₂éh₁yetito stand
9Proto-Indo-European*steh₂-

Words derived from “instability

Every word from Proto-Indo-European *steh₂-