Where does “photounstable” come from?
photounstable (English) comes from English unstable, from English stable, from Middle English stable, from Anglo-Norman stable, from Latin stabilis, from Latin stare, from Latin sto, from Proto-Italic staēō.
photounstable (English): photochemically unstable
Definitions
- photochemically unstable
Ancestry of “photounstable”, step by step
photounstable traces back through two separate lines of ancestry.
via English unstable
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | unstable | Having a strong tendency to change; Fluctuating;... |
| 2 | English | stable | A building, wing or dependency set apart and... |
| 3 | Middle English | stable | stable; Alternative form of stablie; Alternative... |
| 4 | Anglo-Norman | stable | — |
| 5 | Latin | stabilis | That stands firm; firm, steadfast, steady, sure,... |
| 6 | Latin | stare | present active infinitive of stō; stand; to be |
| 7 | Latin | sto | I stand; I stay, remain; I am |
| 8 | Proto-Italic | staēō | stand |
| 9 | Proto-Indo-European | sth₂éh₁yeti | to stand |
| 10 | Proto-Indo-European | *steh₂- | — |
via English photo
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | photo | A photograph; A photo finish; To take a... |
| 2 | English | photography | The art and technology of producing images on... |
| 3 | French | photographie | photography; photograph |
| 4 | Ancient Greek | φωτο- | — |
| 5 | Ancient Greek | φῶς | Attic form of φᾰ́ος |
| 6 | Proto-Hellenic | pʰáos | — |
| 7 | Proto-Indo-European | bʰéh₂os | — |
| 8 | Proto-Indo-European | bʰeh₂- | to shine, glow light; to speak, say |
| 9 | Proto-Indo-European | bʰeh₂-s-ri- | — |