Agnate

Word of the Day for Sunday, June 17, 2012

Agnate \ag-neyt\, noun:

1. A relative whose connection is traceable exclusively through males.
2. Any male relation on the father's side.

adjective:
1. Related or akin through males or on the father's side.
2. Allied or akin.

It was considered abomination; no agnate gives up its infant kin in Igboland, no matter the crime.
-- M. O. Ené, Blighted Blues

His uncle in the third segment was the only other agnate who shared patriotic sentiments with Yat-Kuan.
-- Saikaku Ihara, Tales of Japanese Justice

Agnate is derived from the Latin word agnātus which referred to paternal kinsmen. 

Thanks to: www.dictionary.com