Haarmåling
Haarmåling is a term originating from Scandinavian languages, literally translating to "hair measurement" or "hair gauge." It historically referred to a method of measuring hair length, particularly for practical purposes. This could include assessing hair for trade, such as in the sale of wigs or hair extensions, or for determining its suitability for certain crafts or weaving processes. In some contexts, it may have also been used to gauge the health or fineness of hair, although this is less common.
The practice of haarmåling would have been more prevalent in times when hair was a more common