Where does “linie” come from?

linie (Middle Dutch) comes from Old French ligne, from Latin līnea, from Latin līnum, from Proto-Italic līnom, from Proto-Indo-European līnom — flax.

Ancestry of “linie”, step by step

Step	Language	Word	Meaning
1	Old French	ligne	—
2	Latin	līnea	—
3	Latin	līnum	—
4	Proto-Italic	līnom	—
5	Proto-Indo-European	līnom	flax

linie — Etymology, Origin & Word History | Etymology Explorer