Dracula Dictionary May 28th

"These Szgany are gipsies;"
Szgany:
A slur for Romani people.
Gipsie/Gypsy:
A slur for Romani people.

"They attach themselves as a rule to some great noble or boyar, and call themselves by his name."
Boyar:
A memeber of Russian nobility, ranking immediately below the princes.

"and made obeisance and many signs"
Obeisance:
A gesture of respect, like a bow or a curtsy.

"I could only redirect it and hand it to him in silence."
Redirect:
Here: writing an address on an envelope.