means A long thin mark, row, or path connecting points — also a queue, a length of rope or cord, a verbal remark, or a boundary, depending on context.

from From Latin 'linea,' meaning a linen thread, from 'linum,' flax — the very fiber spun into the string a builder stretched taut to mark a straight edge. So every geometric line traces back to a literal piece of flaxen string pulled tight, and the word still hums with that origin in 'linen,' its close relative. English absorbed it through both the native Old English 'line' and an Old French nudge, the two senses braiding together.