Where does “lineal” come from?

lineal (Catalan) comes from Latin līneālis, from Latin līnea, from Latin līnum, from Proto-Italic līnom, from Proto-Indo-European līnom — flax.

lineal (Catalan): linear

Definitions

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

lineal — Etymology, Origin & Word History | Etymology Explorer