• Boie’nen traditionally used one’s height to fathom or measure a body of water’s depth referred to as “tegsad”.
Generally most adults’ height is roughly equivalent to their arm span which is the distance from fingertip to fingertip when arms are stretched out to the sides
• Nautical context: Sailors used their arm span to estimate water depth.
• Old English: "fæðm" or "fathom", related to the distance between outstretched arms
Measurement:
• 1 fathom: Approximately 6 feet (1.83 meters)