Nickname:     Sīsa

•     Sīsselin
• •   Meaning: Sīsselin [unknown meaning + feminine ending]  
• • Possibly derived from     974-sīst-
•     Sīstelūña
• •   Meaning: Sīstelūña shining moon  
• • Derived from     367-lūñ-
  • Derived from     974-sīst-