Where does “lightlike” come from?
lightlike (English) comes from English like, from Dutch luik, from Middle Dutch luke, from Dutch luiken, from Middle Dutch luken, from Old Dutch lūcan, from Proto-West Germanic lūkan, from Proto-Germanic lūkaną — to break, tear; to break, shatter.
lightlike (English): Having a space component whose magnitude is equal...
Definitions
- Having a space component whose magnitude is equal...
Ancestry of “lightlike”, step by step
lightlike traces back through two separate lines of ancestry.
via English like
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | like | To enjoy, be pleased by; favor; be in favor of;... |
| 2 | Dutch | luik | hatch; shutter; panel, as in a triptych |
| 3 | Middle Dutch | luke | — |
| 4 | Dutch | luiken | to close, to shut |
| 5 | Middle Dutch | luken | to close, to shut; to close, to become closed |
| 6 | Old Dutch | lūcan | to close, shut |
| 7 | Proto-West Germanic | lūkan | to close, to shut |
| 8 | Proto-Germanic | lūkaną | to close, to shut; Alternative form of *leukaną |
| 9 | Proto-Indo-European | lewǵ- | to break, tear; to break, shatter |
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 |