offspring; issue; paternal blood
Refers to one's child or descendant, often with a focus on lineage or bloodline. Somewhat formal or literary.
彼は高貴な胤を残した。
He left behind noble offspring.
この家系の胤は絶えてしまった。
The lineage of this family has died out.
The kanji 胤 originally meant 'descendant' or 'heir' in classical Chinese. The reading たね is a kun'yomi, likely related to the word 種 (たね, 'seed'), reflecting the idea of offspring as the seed of a family line.