Unsharp

adj, verb

Definitions

Adjective
  1. 1
    Not sharp.; Out of focus; blurry.
  2. 2
    Not sharp.; Dulled or intentionally blunt.

    "an unsharp tool"

Verb
  1. 1
    To sharpen (an image) by creating a blurred ("unsharp") negative as a mask, and then combining that mask with the original. transitive

Etymology

Etymology 1

From Middle English *unscharp, from Old English unsċearp, from Proto-West Germanic *unskarp, from Proto-Germanic *unskarpaz, equivalent to un- + sharp. Cognate with Saterland Frisian uunskäärp (“unsharp”), West Frisian ûnskerp (“unsharp”), Dutch onscherp (“unsharp”), German Low German unscharp (“unsharp”), German unscharf (“unsharp”), Danish uskarp (“unsharp”), Swedish oskarp (“unsharp”), Norwegian uskarp (“unsharp”).

Etymology 2

From Middle English *unscharp, from Old English unsċearp, from Proto-West Germanic *unskarp, from Proto-Germanic *unskarpaz, equivalent to un- + sharp. Cognate with Saterland Frisian uunskäärp (“unsharp”), West Frisian ûnskerp (“unsharp”), Dutch onscherp (“unsharp”), German Low German unscharp (“unsharp”), German unscharf (“unsharp”), Danish uskarp (“unsharp”), Swedish oskarp (“unsharp”), Norwegian uskarp (“unsharp”).

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