産うぶ子ごうぶごMeanings1nounnewborn; newborn babyarchaicArchaic term for a newborn infant. In modern Japanese, 新生児 (しんせいじ) or 赤ちゃん (あかちゃん) are used instead.古こ文ぶん書しょには「産うぶ子ご」と記しるされ、生うまれたばかりの子こを指さす。In old documents, '産子' is written and refers to a newborn child.