an ancestor; 【形式ばった表現】 a forefather; 【形式ばった表現】 a progenitor
〈始祖〉 【形式ばった表現】 the father; the founder; the originator
読み方 そ
1
(=先祖)an ancestor; a predecessor
2
(=始祖)the progenitor (of the human race); the originator (of a scheme); the founder (of a school); the author (of a revolution); the father (of philosophy); the pioneer (of foreign studies, etc.)