Hi Krystina, this is great that you are taking an interest in history and antiques at a young age! A lot of us here started by being fascinated with old things when we were 15 or even younger.
Sounds like you have a good start on the research of this book. It looks like the first printing of it was a little earlier in 1864 and it was reprinted again as recently as 1998. Now that's a good, useful book that can do that! From what I could find, it seems to be the book that standardized Dutch language and spellings.
It sounds like the condition of the book will be a problem as far as it's value, but the important thing to remember is that sometimes useful-much loved and worn items have the deepest sense of history. So even if it turns out that the book doesn't have a lot of monitary value, it does have history and a wonderful past to have survived all these years.
According to this Web page your book is "very rare"!
http://www.sigmabookshop.com/books.htmHere is what is says about it and the value they placed on the book in the condition described:
6113 KUIPERS, R.K. Volledig woordenboek der Nederlandsche taal. Afleidind-Synoniemen-Zegswijzen-Spreekwoorden.. . X + 1200 p., met registers: bastaardwoorden en Nederlandse plaatsnamen. 1893 Amsterdam : Elsevier HARDCOVER: (Orig. red cloth, bit rubbed, one page loose, else VERY GOOD) VERY RARE. [KEY WORDS: Dictionaries Woordenboeken linguistics taalkunde ] € 89.50
I hope this helps as a start and that the others here can add more!