English

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Etymology

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From um- +‎ stroke.

Noun

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umstroke (plural umstrokes)

  1. (obsolete) The circumference or periphery of a circle.
  2. (archaic) A boundary line, especially one at the outermost limit; an extreme edge.
    • 1608, Thomas Fuller, Pisgah Sight of Palestine:
      Such towns as stand, as one may say, on tiptoes on the very umstroke, or on any part of the utmost line of a map []

Synonyms

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