don
Dictionaries (and Bibles) are huge documents and pose
many problems. Shear size being one. Indexing is another.
Tossing in a second language (and the character set)
You have a difficult project
Looking quickly at your data shown:
(outside of Calibre)
you need to create a script to wrap (in your chosen visual format) HTML around each field (line/paragraph or word)
All that needs to be wrapped up in the standard HTML boilerplate (<html><head></head><body>...</body></html>
Keep in mind that individual file size will be an issue and you need to break the dictionary into multiple sections.