先さきつ祖おやMeanings1nounancestorArchaic or literary term for an ancestor; not used in everyday modern Japanese. The more common modern word is 祖先 (そせん).古ふるい文ぶん献けんには「先さきつ祖おや」という表ひょう現げんが見みられる。The expression 先つ祖 can be found in old documents.
