• 胤たね

  issue, offspring, paternal blood

• 後胤こういん

  descendant, scion

• 落胤らくいん

  nobleman's illegitimate child

• 落とし胤おとしだね

  illegitimate child (usu. of a nobleman)

• 因果の胤を宿すいんがのたねをやどす

  to become pregnant with an illegitimate child

• 胤裔いんえい

  successor, descendant

• 皇胤こういん

  Imperial descendant (posterity)

• 血胤けついん

  lineage, stock, descent, strain, blood relationship