70%RatingSave Gender Masculine Usage French Pronounced Pron. ZHEES-LEHN, GEE-LEHN [key·IPA] Meaning & History French form of Gislenus, a Latinized form of the Germanic name Gislin, derived from the element gisal meaning "hostage" or "pledge". This was the name of a 7th-century saint and hermit who built a chapel near Mons, Belgium. Related NamesFamily Tree·Details VariantGhyslainFeminine FormsGhislaine, GhyslaineOther Languages & CulturesGislenus, Gislin(Germanic) PopularityDetails Last ranked #465 in 1999 France Name DaysName Days? France: October 10