Learn how to say Agnation correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word agnate:
a person descended from the same male ancestor as another specified or implied person, especially through the male line:
the heir will be the nearest agnate
descended from the same male ancestor. Compare with cognate (sense 2 of the adjective).
late 15th century (as a noun): from Latin agnatus, from ad- ‘to’ + gnatus, natus ‘born’