בן אחר בן

Etymology
The term is comprised of the Hebrew noun meaning "son" and the Hebrew preposition  meaning "after". The literal translation is "son after son".

Adjective
Example: Rashi ben akhar ben Yochanan HaSandler (Rashi is a direct paternal descent of Yochanan HaSandler).
 * 1) Direct patrilineal descent. The Hebrew equivalent to patrilineality.