Douglas Harper's Etymology Dictionary
Wiktionary
patrilineal
a. Pertaining to descent through male lines.
WordNet
patrilineal
adj. based on or tracing descent through the male line; "a patrilineal society" [syn: patrilinear]
Usage examples of "patrilineal".
For this purpose, as well as for inheriting property, matrilineal descent is usually regarded as typical of Micronesia, although patrilineal and mixed groups may also be found.