French osier

← Breton aoz (cognate)

← Gaulish *awesā (derived)

← Proto-Celtic *auos (derived)

← Old French osier (inherited)

← Old French hosier (mention)

← Old French hosyere (mention)

← Low German Halster (cognate)

← Low German Hilster (mention)

→ English osier (borrowed)

→ French oseraie (suffix)