翻譯名義集 1.133

1.133

【孫陀羅難陀】孫陀羅，此云好愛，妻名也。或云孫陀羅利，此云善妙。難陀云歡喜，己號也。簡放牛難陀，故標其妻。

[Sundarananda] Sundara translates as 'fond love', which was his wife's name. It is also called Sundarī, which translates as 'beautiful and excellent'. Nanda means 'joy', which was his own appellation. To distinguish him from Cowherd Nanda, he is designated by his wife's name.