gilvan = key (noun) (some things Google found for "gilvan": a common term; a uncommon masculine first name that is usually Brazilian which apparently is a variant of Giovanni; a unusual last name; Gilvan Packaging Corporation of the Philippines; contemporary British painter performer The Baron Gilvan; name of places in Iran)
Word derivation for "key" :
Basque = giltza, Finnish = avain
Miresua = gilvan
My previous Miresua word for key was iltava. This is another revision. I redid this word to not end in A. As a bonus, the new word starts in G, which is uncommon in Miresua. Only borrowed words start in G in Finnish.
Another Basque word for key is gako.
The word key appears around ten times in the text of Alice's Adventures in Wonderland.