bupä = head (noun) (some things Google found for "bupa": a very common term; Bupa (originally an acronym for British United Provident Association) is a large healthcare organization operating in many countries; Bupa is an unusual last name; Bupa is the name of a city in Pakistan)
Word derivation for "head" :
Basque = buru, Finnish = pää
Miresua = bupä
A somewhat odd word, but for Miresua it's a good alphabetic mix of the Basque and the Finnish words.
This Miresua conlang word has been changed. The word for head is now päru.