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
| 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 | — |
| 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 |