Etymology and Origin
Gislaine is a French variant of Ghislaine, primarily used in France and also in Brazil. Ghislaine itself is the feminine form of Ghislain, which derives from the Latinized Germanic name Gislenus, ultimately from the element gisal meaning 'hostage' or 'pledge' — a common element in Germanic names symbolizing a binding oath or promise. The name is associated with Saint Ghislain, a 7th-century hermit who built a chapel near Mons, Belgium, and whose cult spread across France and the Low Countries.
Notable Bearer
Gislaine is most prominently known as Gislaine Cristina Souza da Silva (born 22 August 1988), a Brazilian football defender. Commonly referred to simply as Gislaine, she began her professional career as a forward with São José Esporte Clube at age 16 before transitioning to defender. Over 13 years, she won three Copa Libertadores Femenina titles and the 2014 International Women's Club Championship with São José. She later played for Corinthians and Santos in the Brazilian top flight, and has been capped for the Brazil women's national team.
Sources: Wikipedia — Gislaine