Quick answer
Rosamund is a girl name meaning "pure rose; rose of the world".
Pronunciation: English /ˈɹoʊ.zə.mənd/; American English /ˈɹɑz.ə.mənd/; British English /ˈɹɒz.ə.mənd/.
Meaning and history
This name is derived from the Old German elements hros "horse" and munt "protection". This name was borne by the wife of the Lombard king Alboin in the 6th century. The Normans introduced it to England. It was subsequently interpreted as coming from Latin rosa munda "pure rose" or rosa mundi "rose of the world". This was the name of the mistress of Henry II, the king of England in the 12th century. According to legends she was murdered by his wife, Eleanor of Aquitaine.
Notes and context
Usage: english