Crossword puzzle clue "negater's word"

Negater's word

Yea negater

Nay negater

First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f

First word of a song whose last word is "Dominum"

Greeting word or parting word

Jumble wordplay applied to every Across answer except this one, yielding another word/word form

A word that means the opposite of another word (for example, "good" vs. "bad")