Preposition: of

• cap: It was not just a slight doffing of the cap, but a complete removal of it with a bow.

Object

• cap: What singles Pedro out from the crowd is the soulful elements and the doffed cap toward nature.

• hat: Quakers also upset people by not showing respect by " doffing the hat " .

Modifying Another Word

• politely: The commissary, who was smoking at his ease, politely doffed his hat upon the singer's entrance.