lightspeed

English

noun
Definitions
  • The speed of light (in vacuum unless another medium is specified)

Etymology

Compound from English light (not heavy, lacking weight, not weighed down, ignite, very like, come, make less heavy, get down, same as, drop, illuminate, lacking weight mental gravity, shine, lacking mental gravity, weak, pale, bright, lighten, l, luminous, visible, little weight, make bright, dismount, unload) + English speed.

Origin

English

speed

Gloss

Timeline

Distribution of cognates by language

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Cognates and derived terms