Where does “patrilineage” come from?

patrilineage (English) comes from English lineage, from Middle English linage, from Old French linage, from Old French ligne, from Latin līnea, from Latin līnum, from Proto-Italic līnom, from Proto-Indo-European līnom — flax.

patrilineage (English): Lineage based upon the paternal line; a group of descendants related through a common male lineage