The spelling of "draughn" may seem confusing, but it follows common English phonetic patterns. The correct pronunciation is /drɔn/, with the "au" representing the "aw" sound, as in "caught." The "gh" is silent, as it often is in English words. This spelling variant of "drawn" is primarily seen in Scottish and Northern English dialects. It's important to note that alternative spellings, such as "dran" or "dron," may also be used in regional accents.
There doesn't appear to be a widely recognized word "draughn". However, there is a possibility that you may be referring to the word "draught" or "draft". Here is the etymology for both words:
1. "Draught" (also spelled "draft"):
The word "draught" originated from Middle English and Old English. It can be traced back to the Old English word "dræht" or "dræhto", which meant "pulling" or "stroke of a weapon". It also had a sense of "lot" or "fate". The word evolved over time, and by the 14th century, it was being used to signify "act of pulling", especially in relation to moving heavy loads. Later on, "draught" began to be used to refer to the force or action of drawing air or liquid in or out.