Old French gastel

← Proto-Germanic *wastiliz (derived)

← Proto-Germanic *wistiliz (mention)

← Proto-Germanic *wistiz (suffix)

← Proto-Germanic *-ilaz (suffix)

← Proto-Indo-European *wes- (derived)

→ English wastel (mention)

→ Middle English wastel (mention)

→ French gâteau (inherited)

→ Norman gâté (mention)

→ Bourguignon gaîteâ (inherited)