grassgut

" Lawd, Ah know dat grassgut liver-lipted nigger ain't done took and beat mah baby already!"

pg.22

Harper Perennial Modern Classics

In context the word sounds like an insult used back then and I couldn't find it on Dictionary.com

beaten biscuits

" Then she went to see Nanny in Mrs. Washburn's kitchen on the day for beaten biscuits."

pg.22

Harper Perennial Modern Classics

According to Dictionary.com they are hard, unleavened biscuits made to rise by pounding and folding dough.

treacherous

"An envious heart makes a treacherous ear."

pg.5

Harper Perennial Modern Classics

I've heard it used in dangerous situations such as a hurricane or a "treacherous" storm, so i think it means dangerous.

ecstatic

"She saw a dust-bearing bee sink into the sanctum of a bloom; the thousand sister-calyxes arch to meet the love embrace and the ecstatic shiver of the tree from root to tiniest branch creaming in every blossom and frothing with delight."

pg.11

Harper Perennial Modern Classics

According to Dictionary.com it means being in a state of ecstasy; joyful or enraptured.

lacerate

"She bolted upright and peered out of the window and saw Johnny Taylor lacerating her Janie with a kiss."

pg.12

Harper Perennial Modern Classics

I think this word means cutting,or cutting into too.