有ゆう夏かMeanings1nounMainland Chinarare termRare term for Mainland China, likely encountered only in historical or literary contexts.古ふるい文ぶん献けんでは、有ゆう夏かという表ひょう現げんで中ちゅう国ごく本ほん土どを指さすことがある。In old documents, the term 有夏 sometimes refers to Mainland China.