Rosamund

• Rosamond

Of Germanic origin (probably Frankish via French Rosemonde or Lombardic via Italian Rosmunda), from Proto-Germanic *hrussą (“horse”) and *mundō (“protection”). By medieval folk etymology interpreted as Latin rosa munda (“pure rose”) or rosa mundī (“rose of the world”) in reference to the Virgin Mary.[1]

Rosamund

1. A female given name.
   • 1977 Agatha Christie, An Autobiography, HarperCollins (2011), →ISBN, page 31:

     Cooks of any seniority were always 'Mrs'. Housemaids and parlourmaids were supposed to have 'suitable' names - e.g. Jane, Mary, Edith, etc. Such names as Violet, Muriel, Rosamund and so on were not considered suitable, and the girl was told firmly, 'Whilst you are in my service you will be called "Mary"'.