Deloof is a web interface to Jan Deloof's Bretons-Nederlands Woordenboek (Breton-Dutch dictionary). Jan's lifelong interest in Breton language and culture is reflected in this 800-page dictionary with its 40,000 entries, one of the largest for any Celtic language, and certainly the largest under a free (GPL3) licence.

I am grateful to Jan for his kind permission to host this interface under the GPL3 licence. Any errors or omissions (and there are some!) in the transfer of the dictionary from page to screen are down to me.

The dictionary is also available for download as in .csv format (1.2Mb), which can be imported into a spreadsheet.

For Breton, try looking up levr or bro; for Dutch, try looking up boek or zijde.