To me it sounds like a dated nickname to Hillevi. Like "Lilla Hillevi" turned into "Lillivi/Lillevi".
Monsters are real, and ghost are real too. They live inside us, and sometimes, they win
- Stephen King
PNL: http://www.behindthename.com/pnl/45898
Top rated: Mabel and Henry
Bottom: Mable and Isak