The Collaborative International Dictionary of English v.0.48:

Rath \Rath\ (r[a^]th), n. [Ir. rath.]
   1. A hill or mound. [Ireland] --Spenser.
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   2. A kind of ancient fortification found in Ireland.
      [1913 Webster] Rath

The Collaborative International Dictionary of English v.0.48:

Rath \Rath\, Rathe \Rathe\ (r[a^]th), a. [AS. hr[ae][eth],
   hr[ae]d, quick, akin to OHG. hrad, Icel. hra[eth]r.]
   Coming before others, or before the usual time; early. [Obs.
   or Poetic]
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         Bring the rathe primrose that forsaken dies. --Milton.
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The Collaborative International Dictionary of English v.0.48:

Rath \Rath\, Rathe \Rathe\, adv.
   Early; soon; betimes. [Obs. or Poetic]
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         Why rise ye up so rathe?                 --Chaucer.
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         Too rathe cut off by practice criminal.  --Spenser.
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