KERF

PRONUNCIATION: (kuhrf)

MEANING: noun:nn1. A cut, notch, slit, etc. made by a cutting tool.
2. The width of such a cut.

ETYMOLOGY: From Old English cyrf (a cutting). Earliest documented use: before 1150.
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PERF - short for perforations, where Toilet Paper tears. Or doesn't.

SKERF - a head covering worn by the orthographically challenged

SERF - where a seashore-dwelling feudal peasant plays in the waves