←
Old English *lǣċ (inherited)
←
Old English *lǣċe (mention)
←
Old English leċċan (cognate)
←
Old English lacu (cognate)
←
Old English leċċan (inherited)
←
Middle English leche (inherited)
←
Middle English *lechen (inherited)
←
Proto-Germanic *lēkijō (inherited)
←
Proto-Indo-European *leǵ- (derived)
←
Proto-Indo-European *leǵ- (derived)
→
English leech (mention)