Irish léas

← Old French laisier (mention)

← Irish spéirléas (link)

← Irish léigheas (link)

← Middle Irish lés (inherited)

← Middle Irish léas (inherited)

← Old Norse ljós (derived)

→ Irish léasacht (affix)

→ Irish léasaigh (affix)

→ Irish spéirléas (affix)

→ Irish foléas (affix)