Fy on you, fiend! Hist!

Fy \Fy\, interj. [See {Fie}, interj.]
A word which expresses blame, dislike, disapprobation,
abhorrence, or contempt. See {Fie}.

hist, interj

1. (dated) An utterance used to discreetly attract someone's attention.
2. (dated) An injunction to be silent and/or to pay attention to what is being said or can be heard.   quotations
   • 1827, James Fenimore Cooper, The Prairie, Chapter XI,

     "My worthy Nelly! I am greatly rejoiced to find it is no other than thee. Hist! child, hist! Should Ishmael gain a knowledge of our plans, he would not hesitate to cast us both from this rock, upon the plain beneath. Hist! Nelly, hist!"

   • 1850, Edgar Allan Poe, Scenes from "Politian", 2009 [1902], Charles F. Richardson (editor), The Complete Works of Edgar Allan Poe, Volume 1: Poems, page 87,

     Hist! hist! thou canst not say / Thou hearest not now Baldazzar?,

   • 1851, Herman Melville, Moby-Dick, Chapter 99,

     There’s a clue somewhere; wait a bit; hist—hark! By Jove, I have it!

Synonyms

• (utterance used to attract someone's attention): psst, hey, yo; see also Thesaurus:hey
• (injunction to be quiet): hush, shh, shush, whist
• (injunction to pay attention): hark

Thus ends the first post.