Where does “light equation” come from?
light equation (English) comes from English equation, from Latin aequatio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis-, from Latin calceus — small stone, pebble; gravel, rubble.
light equation (English): The time which light takes to traverse the mean distance of the Earth from the Sun
Definitions
- The time which light takes to traverse the mean distance of the Earth from the Sun
Ancestry of “light equation”, step by step
light equation traces back through two separate lines of ancestry.
via English equation
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | equation | The act or process of equating two or more... |
| 2 | Latin | aequatio | an equalization, equal distribution; equation |
| 3 | Latin | -tiō | tion, -ation, -ing |
| 4 | Latin | dissertātiō | (spoken) dissertation, discourse, disquisition |
| 5 | Latin | dissertus | arranged, disposed; explained |
| 6 | Latin | disserere | second-person singular future passive indicative... |
| 7 | Latin | dis- | asunder, apart, in two; reversal, removal;... |
| 8 | Latin | calceus | shoe |
| 9 | Latin | calx | limestone; chalk; the finish line |
| 10 | Ancient Greek | χάλιξ | small stone, pebble; gravel, rubble |
via English Light
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | Light | A place name |
| 2 | Middle English | light | The radiation which allows for vision by... |
| 3 | Old English | lēoht | luminous, bright, light, clear, resplendent,... |
| 4 | Proto-West Germanic | leuht | light, bright; light |
| 5 | Proto-Germanic | leuhtą | light |
| 6 | Proto-Indo-European | lewktom | — |
| 7 | Proto-Indo-European | lewk- | bright; to shine; to see |