Old French ir

→ French rougir (suffix)

→ Old French enrichir (confix)

→ Old French embellir (confix)

→ Old French froidir (suffix)

→ Old French obscurcir (suffix)

→ Old French rogir (suffix)

→ Old French apovrir (confix)

→ Old French afeblir (confix)

→ Old French champir (suffix)

→ Old French anpalir (confix)

→ Old French anhardir (confix)

→ Old French amoistir (confix)

→ Old French engrossir (confix)

→ Old French amaladi (confix)