If you can provide more context about where you encountered this word, I might be able to help you figure out what it means. For example:
* What was the context of the word? Was it in a book, a conversation, a song lyric, etc.?
* What language was the word used in?
* Did the word have any surrounding words that might give clues to its meaning?
Please provide more information so I can help you understand the meaning of "Hilver."