Paraph
Paraph , noun
[French paraphe, parafe, contr. from paragraphe.]
A flourish made with the pen at the end of a signature. In the Middle Ages, this formed a sort of rude safeguard against forgery. — Brande & C
Paraph , transitive verb
[Compare French parapher, parafer.]
To add a paraph to; to sign, esp. with the initials.