Where does “retroillumination” come from?
retroillumination (English) comes from English illumination, from Middle French illumination, from Latin illuminatio, from Latin illūminō, from Latin lūminō, from Latin lūmen, from English -escence, from Latin -escens — Creates transitive imperfective verbs from roots.
retroillumination (English): The examination of a body part, or a tissue sample, by shining light from directly behind it
Definitions
- The examination of a body part, or a tissue sample, by shining light from directly behind it
Ancestry of “retroillumination”, step by step
retroillumination traces back through two separate lines of ancestry.
via English illumination
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | illumination | The act of illuminating, or supplying with light;... |
| 2 | Middle French | illumination | — |
| 3 | Latin | illuminatio | glory; enlightening; illumination, lighting |
| 4 | Latin | illūminō | to illuminate, light up, brighten |
| 5 | Latin | lūminō | to illuminate |
| 6 | Latin | lūmen | light, source of light |
| 7 | English | -escence | a specified process or state |
| 8 | Latin | -escens | — |
| 9 | Latin | -esco | Forms verbs from adjectives meaning "become " |
| 10 | Latin | -eo | Forms stative verbs from adjectives; dative... |
| 11 | Proto-Italic | -ēō | Forms stative verbs, indicating a state of being;... |
| 12 | Proto-Italic | -ējō | — |
| 13 | Proto-Indo-European | -éh₁yeti | Thematicization of the athematic stative verbal... |
| 14 | Proto-Indo-European | -yeti | Creates transitive imperfective verbs from roots |
via English retro
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | retro | Of, or relating to, the past, past times, or the... |
| 2 | French | rétro | shortening of rétroviseur, mirror; retro |
| 3 | French | rétroviseur | rear-view mirror |
| 4 | French | rétro- | retro-, back, behind |
| 5 | Latin | retrō | back, backwards, behind |
| 6 | Latin | dūcere | — |
| 7 | Proto-Italic | doukō | lead |
| 8 | Proto-Indo-European | déwketi | — |
| 9 | Proto-Indo-European | dewk- | to pull, to draw; to lead |