Where does “undecidability” come from?
Undecidability derives from English decide, which comes from Latin decidere, formed from de- and cadere meaning "to fall," with the suffix -ibilis forming adjectives, ultimately traceable to Proto-Indo-European roots.
undecidability (English): the state of being undecidable
Definitions
- the state of being undecidable
Ancestry of “undecidability”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | decidability | the state or condition of being decidable |
| 2 | English | decide | to resolve ; to choose, determine, or settle; to... |
| 3 | Middle English | deciden | To make a ruling or judgement; to decide an issue... |
| 4 | Middle French | décider | — |
| 5 | Latin | dēcīdō | — |
| 6 | Latin | dē- | — |
| 7 | Latin | dē | — |
| 8 | Latin | post | behind; after, since, besides, except; behind,... |
| 9 | Latin | poste | ablative singular of postis |
| 10 | Proto-Italic | posti | — |
| 11 | Proto-Indo-European | pósti | — |
| 12 | Proto-Indo-European | pós | afterwards, post; by, at |