Where does “thinkable” come from?

Thinkable comes from Middle English -able, Old French -able, Latin -abilis, and Proto-Indo-European teng-, ultimately from the same root meaning to think or perceive.

thinkable (English): Able to be thought or imagined; conceivable;...

Definitions

  1. Able to be thought or imagined; conceivable;...

Ancestry of “thinkable”, step by step

StepLanguageWordMeaning
1English-ableAn adjectival suffix; forms adjectives meaning
2Middle English-ableable
3Old French-ableworthy of, deserving of; -ing, creating an...
4Latin-ābilissuffixed to noun to form adjectives meaning "able to have or bring, prone to have or bring, having the power to have or bring": -able

Words derived from “thinkable

Every word from Latin -ābilis