The story
- Proto-West Germanic · derived from*hildi
- Old High German · derived fromis“ice”
- Proto-Brythonic · derived from*Adsiltia“she who is gazed upon”
- English todayIseult
Old French, the name of the queen who fell in love with Tristan in medieval romance Tristan and Iseult, perhaps from Celtic, of uncertain meaning, possibly Proto-Brythonic *Adsiltia (“she who is gazed upon”); compare Welsh syllu and Irish súil. Otherwise from Germanic, equivalent to Old High German is (“ice”) + hiltja (“battle”) (from Proto-West Germanic *hildi).
Etymology from Wiktionary, CC BY-SA 4.0.