Etymology

timelike

T1I1M3E1L1I1K5E1

Today it means: Of a four-vector in representing a point in spacetime, having a positive or negative four-vector norm for the metric signature (+, -, -, -) and (-, +, +, +) respectively. Full definition →

Proto-Germanic *līką ← Proto-Indo-European *leyg- ← English time
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The story

  1. Proto-Indo-European*deh₂-
  2. Proto-Indo-European*deh₂y-
  3. Proto-Indo-European*dih₂-mon-
  4. Proto-Germanic*tīmô
  5. Proto-West Germanic*tīmō
  6. Old Englishtīma
  7. Middle Englishtyme
  8. Englishtime
  9. Proto-Indo-European*leyg-
  10. Proto-Germanic*līką
  11. English todaytimelike

From time + -like.

Etymology from Wiktionary, CC BY-SA 4.0.