pääsäie
Pääsäie is a Finnish term meaning the main or primary thread or strand. It is a compound word formed from pää, meaning head or main, and säie, meaning thread or filament. In Finnish usage, pääsäie is used to describe the central or organizing strand in a multi-strand construction, such as a yarn, rope, or cord, around which other fibers or strands are arranged or tied.
In textile and rope-making contexts, pääsäie can refer to the inner or core strand that provides the
Beyond concrete applications, pääsäie can be used metaphorically to indicate the central element or the main