Sindarin 

mund

noun. bull

An Elvish word for “bull” in a 1972 letter to Meriel Thurston appearing as an element in various names such as Aramund “Noble Bull” (Let/423). Given its lack of final vowel, this could be the Sindarin equivalent of Q. mundo “bull” appearing in another letter to Mrs. Thurston from early in the same year (Let/422). However, if these were proper Sindarin names, this second element of these names would mutate to -vund, so these names are either Anglicanized or pseudo-Elvish mixtures of Quenya and Sindarin elements.

Conceptual Development: The similar word G. “ox” appeared in the Gnomish Lexicon of the 1910s serving as the basis for various cow-related words (GL/58).